Bump codecov/codecov-action from 3 to 4

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 3 to 4.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/main/CHANGELOG.md)
- [Commits](codecov/codecov-action@v3...v4)

---
updated-dependencies:
- dependency-name: codecov/codecov-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/test.yml

@@ -63,6 +63,6 @@ jobs:
           run: dotnet test "${{matrix.project}}" --no-restore -c Release --collect:"XPlat Code Coverage;SkipAutoProps=true"
 
         - name: codecov
-          uses: codecov/codecov-action@v3
+          uses: codecov/codecov-action@v4
           with:
             token: ${{secrets.CODECOV_TOKEN}}