Bump codecov/codecov-action from v1.2.1 to v1.2.2 (#19)

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from v1.2.1 to v1.2.2.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/master/CHANGELOG.md)
- [Commits](codecov/codecov-action@v1.2.1...1f8f3ab)

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/tests.yml

@@ -41,7 +41,7 @@ jobs:
         run: composer run-script test:phpunit -- --coverage-clover coverage.xml
 
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v1.2.1
+        uses: codecov/codecov-action@v1.2.2
         with:
           token: ${{ secrets.CODECOV_TOKEN }}