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]>

Author: dependabot[bot]

.github/workflows/test.yml

@@ -15,6 +15,6 @@ jobs:
           go-version: ">=1.20"
           check-latest: true
       - run: make integration-test
-      - uses: codecov/[email protected].4
+      - uses: codecov/[email protected].6
         with:
           file: ./coverage.txt