feat(github)!: Update actions/checkout (v4 → v5)

[lrstanley-x]

This PR contains the following updates:

Package	Type	Update	Change	OpenSSF
actions/checkout	action	major	v4 -> v5

---

Release Notes

actions/checkout (actions/checkout)

v5

Compare Source

---

Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

PR generated using automation.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 21.83%. Comparing base (5f450cc) to head (4b77ca3).
⚠️ Report is 5 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #103      +/-   ##
==========================================
- Coverage   23.59%   21.83%   -1.77%     
==========================================
  Files          18       18              
  Lines        1123     1241     +118     
==========================================
+ Hits          265      271       +6     
- Misses        841      953     +112     
  Partials       17       17              

☔ 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.