Bump codecov/codecov-action from 3.1.4 to 4.1.1

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 3.1.4 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@v3.1.4...v4.1.1)

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

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

Author: dependabot[bot]

.github/workflows/unit-test.yml

@@ -31,4 +31,4 @@ jobs:
     - name: Run unit tests
       run: coverage run --branch --source=ssm,bin -m unittest discover --buffer
     - name: Upload coverage to Codecov
-      uses: codecov/codecov-action@v3.1.4
+      uses: codecov/codecov-action@v4.1.1