Bump codecov/codecov-action from 4 to 5

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 4 to 5.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/main/CHANGELOG.md)
- [Commits](codecov/codecov-action@v4...v5)

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

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/ci.yml

@@ -113,7 +113,7 @@ jobs:
 
     - name: Submit code coverage
       if: matrix.php-version == '8.2'
-      uses: codecov/codecov-action@v4
+      uses: codecov/codecov-action@v5
 
   testsuite-windows:
     runs-on: windows-2022
@@ -181,7 +181,7 @@ jobs:
           vendor/bin/phpunit --verbose --coverage-clover=coverage.xml
 
     - name: Submit code coverage
-      uses: codecov/codecov-action@v4
+      uses: codecov/codecov-action@v5
 
   cs-stan:
     name: Coding Standard & Static Analysis