linter now outputs warning but doesn't fail

.github/workflows/pr-tests.yml

@@ -37,4 +37,11 @@ jobs:
         run: pip install -r requirements.txt
 
       - name: Run pylint
-        run: pylint stackhpc_openstack_tests/*.py
+        run: |
+          set +e    # disabling exit on non-zero error code so can output warnings without failing
+          pylint stackhpc_openstack_tests/*.py
+          EXIT_CODE=$?
+          set -e
+          if [[ $(($EXIT_CODE & 3)) > 0 ]] then   #bitwise check for pylint exit coeds which indicate errors
+            exit 1
+          fi