Update actions/setup-dotnet action to v4

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
actions/setup-dotnet	action	major	v3 -> v4

---

Release Notes

actions/setup-dotnet (actions/setup-dotnet)

v4

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 is behind base branch, 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

---

This PR was generated by Mend Renovate. View the repository job log.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (8cf0886) 74.19% compared to head (4f1e74b) 72.50%.
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #54      +/-   ##
==========================================
- Coverage   74.19%   72.50%   -1.70%     
==========================================
  Files          28       28              
  Lines         124      120       -4     
  Branches        0        6       +6     
==========================================
- Hits           92       87       -5     
  Misses         32       32              
- Partials        0        1       +1     

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