Bump codecov/codecov-action from 4.0.1 to 4.1.1

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 4.0.1 to 4.1.1.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/main/CHANGELOG.md)
- [Commits](codecov/codecov-action@e0b68c6...c16abc2)

---
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/coverage.yml

@@ -23,7 +23,7 @@ jobs:
       - name: ./bin/flutter test --coverage
         run: pushd packages/flutter;../../bin/flutter test --coverage -j 1;popd
       - name: upload coverage
-        uses: codecov/codecov-action@e0b68c6749509c5f83f984dd99a76a1c1a231044
+        uses: codecov/codecov-action@c16abc29c95fcf9174b58eb7e1abf4c866893bc8
         with:
           files: packages/flutter/coverage/lcov.info
           verbose: true