run Python 3.5 from a container

the installation GH has is broken by now

.github/workflows/main.yml

@@ -36,6 +36,7 @@ jobs:
             container: "python:2.7"
           - python: "3.5"
             ansible: "stable-2.11"
+            container: "python:3.5"
           - python: "3.6"
             ansible: "stable-2.11"
           - python: "3.7"

tests/test_crud.py

@@ -52,8 +52,9 @@ def test_check_mode(tmpdir, module):
 
 @pytest.mark.parametrize('module', INVENTORY_PLAYBOOKS)
 def test_inventory(tmpdir, module):
-    if sys.version_info[0] == 2 and 'GITHUB_ACTIONS' in os.environ.keys():
-        pytest.skip("Inventory tests currently don't work inside a container, but Python2 tests require a container on GHA.")
+    if sys.version_info < (3, 6) and 'GITHUB_ACTIONS' in os.environ.keys():
+        pytest.skip("Inventory tests currently don't work inside a container, but Python {}.{} tests require a container on GHA."
+                    .format(sys.version_info.major, sys.version_info.minor))
     inventory = [os.path.join(os.getcwd(), 'tests', 'inventory', inv) for inv in ['hosts', "{}.foreman.yml".format(module)]]
     run = run_playbook(module, inventory=inventory)
     assert run.rc == 0