Bump codecov/codecov-action from 3.1.1 to 3.1.6

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 3.1.1 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@v3.1.1...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.yml

@@ -26,7 +26,7 @@ jobs:
         run: go test -v -mod=readonly -timeout 30m -coverprofile=coverage.txt -tags='norace' -covermode=atomic `go list ./... | grep -v simapp`
         if: env.GIT_DIFF
       - name: Upload codecov report
-        uses: codecov/[email protected].1
+        uses: codecov/[email protected].6
         with:
           file: coverage.txt
         if: env.GIT_DIFF