build(deps): bump codecov/codecov-action from 3.1.4 to 3.1.6

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 3.1.4 to 3.1.6.
- [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...v3.1.6)

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

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/test-code.yaml

@@ -54,7 +54,7 @@ jobs:
       - name: Combine coverage reports
         run: make ccov
 
-      - uses: codecov/[email protected].4
+      - uses: codecov/[email protected].6
         if: success()
         with:
           fail_ci_if_error: false