AAP-59874: Update to Python 3.12 (#16208)

* update to Python 3.12

* remove use of utcnow

* switch to timezone.utc

datetime.UTC is an alias of datetime.timezone.utc. if we're doing the double import for datetime it's more straightforward to just import timezone as well and get it directly

* debug python env version issue

* change python version

* pin to SHA and remove debug portion

awxkit/awxkit/utils/__init__.py

@@ -1,4 +1,4 @@
-from datetime import datetime, timedelta, tzinfo
+from datetime import datetime, timedelta, tzinfo, timezone
 import inspect
 import logging
 import random
@@ -364,7 +364,7 @@ def are_same_endpoint(first, second):
 
 def utcnow():
     """Provide a wrapped copy of the built-in utcnow that can be easily mocked."""
-    return datetime.utcnow()
+    return datetime.now(timezone.utc)
 
 
 class UTC(tzinfo):