Update compatible runtimes for AWS Lambda layer

[Miqueasher]

Update compatible-runtimes to include v 3.14

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[github-actions]

Claude finished @Miqueasher's task in 1m 9s —— View job

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Claude Code Review

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Summary

The change adds python3.14 to --compatible-runtimes in .github/workflows/region-build-release.yml:182. This brings it in line with .github/workflows/release-build.yml:317, which already lists python3.14. The two workflows are now consistent.

Observations:

• Single-line, low-risk change. Looks good.
• One nit: the corresponding line in release-build.yml:317 has a trailing double space before the line-continuation backslash (python3.14 \). The line in this PR uses a single space (python3.14 \), which is the more conventional formatting — no action needed here, just flagging that the sibling file has slightly inconsistent whitespace if anyone wants to clean it up in a follow-up.
• Worth confirming that AWS Lambda's publish-layer-version accepts python3.14 as a value for --compatible-runtimes at the time this workflow runs in your target regions. If the runtime isn't yet available in a region, the publish step will fail with a validation error.

No blocking issues from my side.