github pass / fail badge not accurate anymore

[rhaas80]

GitHub's pass / fail badge is based on the state of the workflow. Right now however this no longer correctly set and leads to a failing test not showing up:

There's code in the workflow:

      # If a test failed the workflow exit with a failing status
      - name: Clean up
        if: ${{env.TESTS_FAILED == 'True'}}
        run: exit 1

but apparently it never triggers.