Bump codecov/codecov-action from 5.5.2 to 6.0.0

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 5.5.2 to 6.0.0.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/main/CHANGELOG.md)
- [Commits](codecov/codecov-action@671740a...57e3a13)

---
updated-dependencies:
- dependency-name: codecov/codecov-action
  dependency-version: 6.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/codecov.yml

@@ -32,7 +32,7 @@ jobs:
       run: |
         pytest -v --cov=gaps --cov-report=html --cov-branch --cov-report=xml:coverage.xml --cov-fail-under=95
     - name: Upload coverage to Codecov
-      uses: codecov/codecov-action@671740ac38dd9b0130fbe1cec585b89eea48d3de
+      uses: codecov/codecov-action@57e3a136b779b570ffcdbf80b3bdc90e7fab3de2
       with:
         token: ${{ secrets.CODECOV_TOKEN }}
         files: ./coverage.xml