Bump codecov/codecov-action from 4.1.1 to 4.3.0

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 4.1.1 to 4.3.0.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/main/CHANGELOG.md)
- [Commits](codecov/codecov-action@c16abc2...8450866)

---
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/ci.yml

@@ -21,6 +21,6 @@ jobs:
           allow-prereleases: true
       - run: python -m pip install coverage tox
       - run: python -m tox
-      - uses: codecov/codecov-action@c16abc29c95fcf9174b58eb7e1abf4c866893bc8 # v4.1.1
+      - uses: codecov/codecov-action@84508663e988701840491b86de86b666e8a86bed # v4.3.0
         with:
           name: ${{ matrix.python }}