Fix codecov failures

Try fixing the following codecov failure:
Error: Codecov: Failed to properly upload: The process '/home/runner/work/_actions/codecov/codecov-action/v3/dist/codecov' failed with exit code 255

Based on codecov/codecov-action#1359, just
avoid failing the CI if Codecov fails, till they will find a resolution.

Signed-off-by: Sharon Gratch <sgratch@redhat.com>

.github/workflows/on-pull-request.yaml

@@ -40,8 +40,6 @@ jobs:
 
       - name: Test coverage
         uses: codecov/codecov-action@v3
-        with:
-          fail_ci_if_error: true
 
   e2e:
     name: Run e2e tests