Bump codecov/codecov-action from 3 to 4

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 3 to 4. - [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...v4) --- 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/go.yml

@@ -34,7 +34,7 @@ jobs:
  run: make test-env-down
 
  - name: Upload coverage reports to Codecov
- uses: codecov/codecov-action@v3
+ uses: codecov/codecov-action@v4
  env:
  CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}