ci: Update validate-conventional-commits.yml

[danjm]

Currently we are validating the PR title of PRs made against release branches and master, but this breaks our release branching and PR processes. For release candidate PRs, we don't want a conventional commit title. This PR updates the conventional commit validation workflow. As a result of this PR, we now follow the same approach as mobile https://github.com/MetaMask/metamask-mobile/blob/ef5febdc0964884352486b91b2cfe0e11f3fda29/.github/workflows/pr-title-linter.yml

[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.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 68.73%. Comparing base (669022c) to head (86a3dbb).
Report is 2 commits behind head on develop.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop   #23455   +/-   ##
========================================
  Coverage    68.73%   68.73%           
========================================
  Files         1124     1124           
  Lines        43617    43617           
  Branches     11674    11674           
========================================
  Hits         29976    29976           
  Misses       13641    13641           

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[metamaskbot]

Builds ready [86a3dbb]

• builds: chrome, firefox
• builds (beta): chrome
• builds (flask): chrome, firefox
• builds (MMI): chrome, firefox
• builds (test): chrome, firefox
• builds (test-flask): chrome, firefox
• build viz: Build System
• mv3: Background Module Init Stats
• mv3: UI Init Stats
• mv3: Module Load Stats
• mv3: Bundle Size Stats
• mv2: E2e Actions Stats
• code coverage: Report
• storybook: Storybook
• typescript migration: Dashboard
• all artifacts
• bundle viz:

  • background: 0, 1, 2, 3, 4, 5
  • common: 0, 1, 2, 3, 4, 5, 6
  • content-script: 0
  • contentscript: contentscript
  • disable-console: disable-console
  • policy-load: policy-load
  • sentry-install: sentry-install
  • ui: 0, 1, 10, 11, 2, 3, 4, 5, 6, 7, 8, 9

Page Load Metrics (1076 ± 468 ms)

Platform	Page	Metric	Min (ms)	Max (ms)	Average (ms)	StandardDeviation (ms)	MarginOfError (ms)
Chrome	Home	firstPaint	98	245	147	34	17
		domContentLoaded	11	68	28	14	7
		load	81	2392	1076	975	468
		domInteractive	11	68	28	14	7

Bundle size diffs

• background: 0 Bytes (0.00%)
• ui: 0 Bytes (0.00%)
• common: 0 Bytes (0.00%)

[metamaskbot]

Missing release label release-11.12.0 on PR. Adding release label release-11.12.0 on PR and removing other release labels(release-11.14.0), as PR was cherry-picked in branch 11.12.0.