Drop usage of distutils and use 'packaging' for version comparison

ansible-core also depends on packaging so this seems like a reasonable dependency

requirements.txt

@@ -1,4 +1,5 @@
 pexpect>=4.5
+packaging
 python-daemon
 pyyaml
 six

test/conftest.py

@@ -1,7 +1,7 @@
 import shutil
 
 from pathlib import Path
-from distutils.version import LooseVersion
+from packaging.version import Version
 import subprocess
 
 from ansible_runner import defaults
@@ -60,7 +60,7 @@ def is_pre_ansible212():
             .stdout.strip()
             .decode()
         )
-        if LooseVersion(base_version) < LooseVersion("2.12"):
+        if Version(base_version) < Version("2.12"):
             return True
     except pkg_resources.DistributionNotFound:
         pass

test/integration/test_display_callback.py

@@ -197,6 +197,7 @@ def test_callback_plugin_task_args_leak(executor, playbook):
     # make sure playbook was successful, so all tasks were hit
     assert not events[-1]['event_data']['failures'], 'Unexpected playbook execution failure'
 
+
 @pytest.mark.parametrize(
     "playbook",
     [