Bump codecov/codecov-action from 5.1.2 to 5.3.1 (#41)

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 5.1.2 to 5.3.1.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/main/CHANGELOG.md)
- [Commits](codecov/codecov-action@v5.1.2...v5.3.1)

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

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

Author: dependabot[bot]

.github/workflows/tox.yml

@@ -164,7 +164,7 @@ jobs:
           fi
 
       - name: Upload coverage data
-        uses: codecov/codecov-action@v5.1.2
+        uses: codecov/codecov-action@v5.3.1
         with:
           name: ${{ matrix.name }}
           # verbose: true # optional (default = false)