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fix(ci): bump PDF build image to Ubuntu 26.04 LTS - #15753

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skjnldsv merged 1 commit into
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fix/devcontainer-ubuntu-26.04
Oct 10, 2026
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skjnldsv merged 1 commit into
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fix/devcontainer-ubuntu-26.04

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Dependabot's bump to ubuntu:25.10 in #15360 breaks both PDF jobs: actions/setup-python only ships Python builds for LTS releases.

##[error]The version '3.13' with architecture 'x64' was not found for Ubuntu 25.10.

This moves the image to 26.04 LTS instead, which has 3.13 builds, and tells Dependabot to skip interim Ubuntu releases so it stops proposing them. 25.10 is also EOL since July.

Supersedes #15360.

✅ Checklist

  • I have not moved or renamed pages (or added a redirect if I did)

I checked that every apt package in the Dockerfile exists on 26.04, but the image itself is only built by CI on this PR.

👾 This pull request was assisted by Claude Code, commits carry an Assisted-by trailer.

actions/setup-python only ships Python builds for Ubuntu LTS releases,
so the PDF jobs fail on interim releases like 25.10. Move the image to
26.04 and make Dependabot skip interim Ubuntu releases.

Assisted-by: ClaudeCode:claude-opus-5-5
Signed-off-by: John Molakvoæ <14975046+skjnldsv@users.noreply.github.com>
@skjnldsv skjnldsv self-assigned this Oct 10, 2026
@skjnldsv
skjnldsv merged commit 9a609a4 into master Oct 10, 2026
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@skjnldsv
skjnldsv deleted the fix/devcontainer-ubuntu-26.04 branch October 10, 2026 08:43
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Last updated: Sat, 10 Oct 2026 08:44:39 GMT

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