Description

Adds an rc-freeze label gate to the auto RC build workflow (build-rc-auto.yml).

Why: During the final stage of a release cycle — after QA has signed off and the last cherry-pick has landed — the release branch is being prepared to merge into stable. At this point, it's undesirable for every new push to trigger a fresh RC build (version bump commit + iOS/Android builds). Previously there was no way to stop the automation without disabling the entire workflow.

What: When the rc-freeze label is present on the release PR, the validate-and-find-pr job emits rc-frozen=true and all downstream jobs (generate_rc_build_version, update_rc_build_version, iOS build, Android build) are skipped via an updated if: condition. A ::notice:: annotation is printed so the skip is visible in the Actions log. Removing the label resumes normal auto RC builds immediately on the next push.

Changelog

CHANGELOG entry: null

Related issues

Fixes:

Manual testing steps

N/A

Screenshots/Recordings

Before

N/A

After

N/A

Pre-merge author checklist

• I've followed MetaMask Contributor Docs and MetaMask Mobile Coding Standards.
• I've completed the PR template to the best of my ability
• I've included tests if applicable
• I've documented my code using JSDoc format if applicable
• I've applied the right labels on the PR (see labeling guidelines). Not required for external contributors.

Performance checks (if applicable)

• I've tested on Android
  • Ideally on a mid-range device; emulator is acceptable
• I've tested with a power user scenario
  • Use these power-user SRPs to import wallets with many accounts and tokens
• I've instrumented key operations with Sentry traces for production performance metrics
  • See trace() for usage and addToken for an example

For performance guidelines and tooling, see the Performance Guide.

Pre-merge reviewer checklist

• I've manually tested the PR (e.g. pull and build branch, run the app, test code being changed).
• I confirm that this PR addresses all acceptance criteria described in the ticket it closes and includes the necessary testing evidence such as recordings and or screenshots.

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