Bump codecov/codecov-action from 4.4.1 to 4.5.0

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 4.4.1 to 4.5.0.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/main/CHANGELOG.md)
- [Commits](codecov/codecov-action@v4.4.1...v4.5.0)

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

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

.github/workflows/testing.yml

@@ -75,7 +75,7 @@ jobs:
       run: |
         pip install -e .
         pytest --cov=maggma --cov-report=xml
-    - uses: codecov/codecov-action@v4.4.1
+    - uses: codecov/codecov-action@v4.5.0
       with:
         token: ${{ secrets.CODECOV_TOKEN }}
         file: ./coverage.xml