fix(action): add required permissions to remove labels

[gauthierpetetin]

Explanation

Tiny fix: The Github action didn't have sufficient permissions to remove labels from issues or PRs.

Screenshots/Screencaps

NA

Before

We currently have this error when the action is executed:

{
  "message": "Resource not accessible by integration",
  "documentation_url": "https://docs.github.com/rest/reference/issues#remove-a-label-from-an-issue"
}

After

No more error.

To reproduce:

1. Add "needs-dev-review" label on PR
2. Merge the PR
3. Label shall be removed a few seconds after PR is merged

Pre-merge author checklist

• [ x ] I've clearly explained:
  • [ x ] What problem this PR is solving
  • [ x ] How this problem was solved
  • [ x ] How reviewers can test my changes
• Sufficient automated test coverage has been added

Pre-merge reviewer checklist

• Manual testing (e.g. pull and build branch, run in browser, test code being changed)
• PR is linked to the appropriate GitHub issue
• IF this PR fixes a bug in the release milestone, add this PR to the release milestone

If further QA is required (e.g. new feature, complex testing steps, large refactor), add the Extension QA Board label.

In this case, a QA Engineer approval will be be required.

[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.

[Gudahtt]

LGTM!

[metamaskbot]

Builds ready [ddea807]

• builds: chrome, firefox
• builds (beta): chrome
• builds (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
  • common: 0, 1, 2, 3, 4, 5
  • content-script: 0
  • contentscript: contentscript
  • disable-console: disable-console
  • inpage: inpage
  • policy-load: policy-load
  • sentry-install: sentry-install
  • ui: 0, 1, 10, 11, 12, 2, 3, 4, 5, 6, 7, 8, 9

Page Load Metrics (1537 ± 27 ms)

Platform	Page	Metric	Min (ms)	Max (ms)	Average (ms)	StandardDeviation (ms)	MarginOfError (ms)
Chrome	Home	firstPaint	111	176	133	16	8
		domContentLoaded	1432	1630	1537	57	27
		load	1432	1630	1537	57	27
		domInteractive	1432	1630	1537	57	27

Bundle size diffs

• background: 0 bytes
• ui: 0 bytes
• common: 0 bytes

[codecov]

Codecov Report

Merging #19728 (ddea807) into develop (492038a) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           develop   #19728   +/-   ##
========================================
  Coverage    69.83%   69.83%           
========================================
  Files          979      979           
  Lines        36905    36905           
  Branches      9909     9909           
========================================
  Hits         25769    25769           
  Misses       11136    11136