Bump codecov/codecov-action from 4.6.0 to 5.1.1

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 4.6.0 to 5.1.1.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/main/CHANGELOG.md)
- [Commits](codecov/codecov-action@v4.6.0...v5.1.1)

---
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/pytests.yml

@@ -132,7 +132,7 @@ jobs:
         continue-on-error: true
 
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v4.6.0
+        uses: codecov/codecov-action@v5.1.1
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           file: ./cov.xml
@@ -261,7 +261,7 @@ jobs:
         continue-on-error: true
 
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v4.6.0
+        uses: codecov/codecov-action@v5.1.1
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           file: ./cov.xml