chore(ci): fix labels workflow permissions

[JP-Ellis]

📝 Summary

Add the issues: write permission, which should allow the workflow to actually update the labels.

🚨 Breaking Changes

🔥 Motivation

The workflow was not working.

🔨 Test Plan

🔗 Related issues/PRs

[Copilot]

Pull Request Overview

This PR fixes the labels workflow by adding the required issues: write permission to allow the GitHub Actions workflow to update issue labels.

• Adds permissions section with issues: write permission to the labels workflow

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 52%. Comparing base (66dc084) to head (f02dc82).
⚠️ Report is 2 commits behind head on main.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@         Coverage Diff          @@
##           main   #1277   +/-   ##
====================================
  Coverage    52%     52%           
====================================
  Files        32      32           
  Lines      3739    3739           
====================================
  Hits       1966    1966           
  Misses     1773    1773           

Flag	Coverage Δ
tests	52% <ø> (ø)

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