ci: Pin action versions

[nickvergessen]

📝 Summary

• Resolves: #

🖼️ Screenshots

🏚️ Before	🏡 After
B	A

🚧 TODO

• ...

🏁 Checklist

• Code is properly formatted (npm run lint / npm run stylelint / composer run cs:check)
• Sign-off message is added to all commits
• Tests (unit, integration and/or end-to-end) passing and the changes are covered with tests
• Documentation (README or documentation) has been updated or is not required

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 52.24%. Comparing base (7786f72) to head (4ef3bf3).
Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #6961   +/-   ##
=======================================
  Coverage   52.24%   52.24%           
=======================================
  Files         476      476           
  Lines       40033    40033           
  Branches      984      984           
=======================================
  Hits        20916    20916           
  Misses      19017    19017           
  Partials      100      100           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.