Bump codecov/codecov-action from 2.1.0 to 3.1.2

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 2.1.0 to 3.1.2.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/main/CHANGELOG.md)
- [Commits](codecov/codecov-action@v2.1.0...v3.1.2)

---
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>

.github/workflows/go.yml

@@ -38,7 +38,7 @@ jobs:
     - name: Test with coverage 
       run: go test -race -v -count=1 -coverprofile=coverage.out ./...
     - name: Upload Test Coverage
-      uses: codecov/codecov-action@v2.1.0
+      uses: codecov/codecov-action@v3.1.2
       with:
           token: ${{ secrets.CODECOV_TOKEN }}
           flags: ${{ matrix.go_version }}