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/matlab_test_and_coverage.yml

@@ -62,7 +62,7 @@ jobs:
       if: matrix.os == 'ubuntu-latest' || matrix.os == 'macos-latest'
       # no coverage on windows as long as MOcov does not support it
       # see https://github.com/MOcov/MOcov/issues/28
-      uses: codecov/codecov-action@v4
+      uses: codecov/codecov-action@v5
       with:
         file: coverage.xml   # optional
         flags: ${{ matrix.os }}_matlab-${{ matrix.version }}

.github/workflows/octave_test_and_coverage.yml

@@ -26,7 +26,7 @@ jobs:
         cover_xml_file: coverage.xml
 
     - name: Code coverage
-      uses: codecov/codecov-action@v4
+      uses: codecov/codecov-action@v5
       with:
         token: ${{ secrets.CODECOV_TOKEN }}   # not required for public repos
         file: coverage.xml   # optional