fix: add definitions for release labels in labeling-guidelines

[gauthierpetetin]

Description

Add definitions for release-x.y.z and regression-prod-x.y.z labels

Related issues

• NA

Manual testing steps

• See preview

Screenshots/Recordings

• NA

Pre-merge author checklist

• I’ve followed MetaMask Coding Standards.
• I've clearly explained what problem this PR is solving and how it is solved.
• I've linked related issues
• I've included manual testing steps
• I've included screenshots/recordings if applicable
• 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.
• I’ve properly set the pull request status:
  • In case it's not yet "ready for review", I've set it to "draft".
  • In case it's "ready for review", I've changed it from "draft" to "non-draft".

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.

[github-actions]

CLA Signature Action: All authors have signed the CLA. You may need to manually re-run the blocking PR check if it doesn't pass in a few minutes.

[github-actions]

E2E test started on Bitrise: https://app.bitrise.io/app/be69d4368ee7e86d/pipelines/66f0911b-09c4-44fc-9549-55b1e3f73e0e
You can also kick off another Bitrise E2E smoke test by removing and re-applying the (Run Smoke E2E) label

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
No Duplication information

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (86a6593) 34.99% compared to head (d0c1687) 34.99%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #7718   +/-   ##
=======================================
  Coverage   34.99%   34.99%           
=======================================
  Files        1034     1034           
  Lines       27537    27537           
  Branches     2298     2298           
=======================================
  Hits         9637     9637           
  Misses      17387    17387           
  Partials      513      513           

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[Cal-L]

LGTM