Fix CI build failures: duplicate javadoc plugin and Jackson version mismatch

[junkaixue]

Issues

• My PR addresses the following Helix issues and references them in the PR description:

Addresses the root cause behind the recent continuous scheduled CI failures (and the flood of auto-filed [Failed CI Test] issue updates), e.g. #3186, #3180, #3179 were unable to even run because the build fails.

Description

• Here are some details about my PR, including screenshots of any UI changes:

Every scheduled Helix CI run on master currently fails before any test executes, for two stacked reasons:

1. Duplicate maven-javadoc-plugin in root pom pluginManagement

PR #2510 added a 3.5.0 declaration (line ~682) without removing the old 3.2.0 skip=true block (line ~616). Older Maven only warned; the newer Maven on GitHub's runners treats it as a fatal model error:

[ERROR] 'build.pluginManagement.plugins.plugin.(groupId:artifactId)' must be unique but found duplicate declaration of plugin org.apache.maven.plugins:maven-javadoc-plugin @ line 682

Since ~Oct 10 every run dies at POM parsing ("No test failure report found"). Removed the stale 3.2.0 block, keeping the 3.5.0 one that #2510 intentionally added.

2. Jackson version mismatch (runs before Oct 10 that did reach tests)

Dependabot bumped jackson-databind to 2.22.x per-module while jackson-annotations stayed at 2.18.6 (helix-rest) and jackson-core at 2.18.11 (helix-core, helix-view-aggregator). databind 2.22 references annotation classes that don't exist in 2.18, so helix-rest tests crashed at class-load time:

An error occurred while instantiating class org.apache.helix.rest.server.TestAuthValidator: com/fasterxml/jackson/annotation/JsonSerializeAs

Aligned all modules on jackson-databind/jackson-core 2.22.3 and jackson-annotations 2.22 (jackson-annotations now releases without a patch digit — there is no 2.22.0).

Tests

• The following is the result of the "mvn test" command on the appropriate module:

Verified locally with JDK 11:

• mvn clean install -DskipTests passes (previously failed at POM parse with newer Maven).
• mvn test -Dtest=TestAuthValidator in helix-rest: Tests run: 2, Failures: 0, Errors: 0 (previously NoClassDefFoundError at instantiation).
• mvn test -Dtest=TestZNRecordSerializer,TestZNRecordStreamingSerializer,TestJacksonPayloadSerializer,TestZNRecord in helix-core: Tests run: 18, Failures: 0, Errors: 0.

Documentation (Optional)

• In case of new functionality, my PR adds documentation in the following wiki page: N/A

Commits

• My commits all reference appropriate Apache Helix GitHub issues in their subject lines.

Code Quality

• My diff has been formatted using helix-style.xml

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