Bump codecov/codecov-action from 4 to 5 in /.github/workflows (#7)

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]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/ci.yml

@@ -105,15 +105,15 @@ jobs:
         run: gcovr --filter src/ --xml -o coverage_c.xml
         if: ${{ !startsWith(matrix.python_version, 'pypy') && matrix.python_version != '3.12' }}
       - name: 'Upload PyPy coverage'
-        uses: codecov/codecov-action@v4
+        uses: codecov/codecov-action@v5
         with:
           fail_ci_if_error: false
           files: ./coverage_python.xml
           token: ${{ secrets.CODECOV_TOKEN }}
         if: ${{ startsWith(matrix.python_version, 'pypy') }}
         continue-on-error: true
       - name: 'Upload СPython coverage'
-        uses: codecov/codecov-action@v4
+        uses: codecov/codecov-action@v5
         with:
           fail_ci_if_error: false
           files: ./coverage_python.xml,./coverage_c.xml