fix(deps): update kotlin monorepo to v2.4.21

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
org.jetbrains.kotlin:kotlin-metadata-jvm (source)	2.4.20 → 2.4.21
org.jetbrains.kotlin:kotlin-serialization (source)	2.4.20 → 2.4.21
org.jetbrains.kotlin:kotlin-gradle-plugin (source)	2.4.20 → 2.4.21
org.jetbrains.kotlin.plugin.compose (source)	2.4.20 → 2.4.21

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Warning

Some dependencies could not be looked up. Check the Dependency Dashboard for more information.

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Release Notes

JetBrains/kotlin (org.jetbrains.kotlin:kotlin-metadata-jvm)

v2.4.21

Backend. Wasm

• KT-89267 K/Wasm: calling a (T) -> R lambda with an argument that isn't a T traps instead of throwing ClassCastException

JVM. Reflection

• KT-89280 NoSuchElementException in argumentsMakeSenseOnlyForMutableContainer for Java non-static inner class of generic outer class
• KT-80710 Reflection: change KCallable representation to avoid dependency on K1

JavaScript

• KT-89449 Kotlin/JS: Member names no longer minified in production
• KT-89363 KJS. Regular class with companion can't extend external class

Tools. Compiler plugins. Serialization

• KT-89275 Kotlin/Wasm: Invalid Wasm is emitted for a @Serializable generic class with a class upper bound

Tools. Gradle. Native

• KT-89285 SwiftPM import results in flooded log
• KT-86251 K/N: Flaky linkDebugTestLinuxX64 failure with "truncated or malformed archive" on libstdlib-cache.a

Tools. Scripts

• KT-89247 Kotlin Script: NoClassDefFoundError on 2nd execution with transitive dependency from imported script
• KT-89220 JSR-223: generic Java bindings break all subsequent eval() calls
• KT-88458 Audit closeable resource usage
• KT-88453 VirtualFileScriptSource.text leaks an unclosed file stream — script source file handle held until GC, blocks file deletion on Windows

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[renovate]

⚠️ Artifact update problem

Renovate failed to update artifacts related to this branch. You probably do not want to merge this PR as-is.

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The artifact failure details are included below:

File name: build.gradle

Command failed: ./gradlew -Dorg.gradle.jvmargs=-Xms512m -Xmx512m --console=plain --dependency-verification lenient -q --write-verification-metadata sha256,pgp dependencies

FAILURE: Build completed with 2 failures.

1: Task failed with an exception.
-----------
* What went wrong:
A problem occurred configuring root project 'talk-android'.
> Could not resolve all artifacts for configuration 'classpath'.
   > Could not resolve org.jetbrains.kotlin:kotlin-gradle-plugin:2.4.21.
     Required by:
         buildscript of root project 'talk-android'
      > Repository Gradle Central Plugin Repository is disabled due to earlier error below:
         > Could not resolve org.jetbrains.kotlin:kotlin-gradle-plugins-bom:2.4.21.
            > Could not get resource 'https://plugins.gradle.org/m2/org/jetbrains/kotlin/kotlin-gradle-plugins-bom/2.4.21/kotlin-gradle-plugins-bom-2.4.21.pom'.
               > Could not GET 'https://repo.maven.apache.org/maven2/org/jetbrains/kotlin/kotlin-gradle-plugins-bom/2.4.21/kotlin-gradle-plugins-bom-2.4.21.pom'.
                  > Received status code 429 from server: Too Many Requests
> There are 51 more failures with identical causes.

* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights from a Build Scan (powered by Develocity).
> Get more help at https://help.gradle.org.
==============================================================================

2: Task failed with an exception.
-----------
* What went wrong:
A problem occurred configuring root project 'talk-android'.
> Could not resolve all artifacts for configuration 'classpath'.
   > Could not resolve org.jetbrains.kotlin:kotlin-gradle-plugin:2.4.21.
     Required by:
         buildscript of root project 'talk-android'
      > Repository Gradle Central Plugin Repository is disabled due to earlier error below:
         > Could not resolve org.jetbrains.kotlin:kotlin-gradle-plugins-bom:2.4.21.
            > Could not get resource 'https://plugins.gradle.org/m2/org/jetbrains/kotlin/kotlin-gradle-plugins-bom/2.4.21/kotlin-gradle-plugins-bom-2.4.21.pom'.
               > Could not GET 'https://repo.maven.apache.org/maven2/org/jetbrains/kotlin/kotlin-gradle-plugins-bom/2.4.21/kotlin-gradle-plugins-bom-2.4.21.pom'.
                  > Received status code 429 from server: Too Many Requests
> There are 51 more failures with identical causes.

* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights from a Build Scan (powered by Develocity).
> Get more help at https://help.gradle.org.
==============================================================================

BUILD FAILED in 35s

File name: app/build.gradle.kts

Command failed: ./gradlew -Dorg.gradle.jvmargs=-Xms512m -Xmx512m --console=plain --dependency-verification lenient -q --write-verification-metadata sha256,pgp dependencies

FAILURE: Build completed with 2 failures.

1: Task failed with an exception.
-----------
* What went wrong:
A problem occurred configuring root project 'talk-android'.
> Could not resolve all artifacts for configuration 'classpath'.
   > Could not resolve org.jetbrains.kotlin:kotlin-gradle-plugin:2.4.21.
     Required by:
         buildscript of root project 'talk-android'
      > Repository Gradle Central Plugin Repository is disabled due to earlier error below:
         > Could not resolve org.jetbrains.kotlin:kotlin-gradle-plugins-bom:2.4.21.
            > Could not get resource 'https://plugins.gradle.org/m2/org/jetbrains/kotlin/kotlin-gradle-plugins-bom/2.4.21/kotlin-gradle-plugins-bom-2.4.21.pom'.
               > Could not GET 'https://repo.maven.apache.org/maven2/org/jetbrains/kotlin/kotlin-gradle-plugins-bom/2.4.21/kotlin-gradle-plugins-bom-2.4.21.pom'.
                  > Received status code 429 from server: Too Many Requests
> There are 51 more failures with identical causes.

* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights from a Build Scan (powered by Develocity).
> Get more help at https://help.gradle.org.
==============================================================================

2: Task failed with an exception.
-----------
* What went wrong:
A problem occurred configuring root project 'talk-android'.
> Could not resolve all artifacts for configuration 'classpath'.
   > Could not resolve org.jetbrains.kotlin:kotlin-gradle-plugin:2.4.21.
     Required by:
         buildscript of root project 'talk-android'
      > Repository Gradle Central Plugin Repository is disabled due to earlier error below:
         > Could not resolve org.jetbrains.kotlin:kotlin-gradle-plugins-bom:2.4.21.
            > Could not get resource 'https://plugins.gradle.org/m2/org/jetbrains/kotlin/kotlin-gradle-plugins-bom/2.4.21/kotlin-gradle-plugins-bom-2.4.21.pom'.
               > Could not GET 'https://repo.maven.apache.org/maven2/org/jetbrains/kotlin/kotlin-gradle-plugins-bom/2.4.21/kotlin-gradle-plugins-bom-2.4.21.pom'.
                  > Received status code 429 from server: Too Many Requests
> There are 51 more failures with identical causes.

* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights from a Build Scan (powered by Develocity).
> Get more help at https://help.gradle.org.
==============================================================================

BUILD FAILED in 24s

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Codacy

Lint

Type	master	PR
Warnings	138	138
Errors	15	15

SpotBugs

Category	Base	New
Bad practice	7	7
Correctness	8	8
Dodgy code	40	40
Internationalization	3	3
Malicious code vulnerability	3	3
Performance	8	8
Security	11	11
Total	80	80