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/setup.py

@@ -92,7 +92,7 @@ setup(
         'requests',
         'setuptools',
     ],
-    python_requires=">=3.8",
+    python_requires=">=3.12",
     extras_require={'formatting': ['jq'], 'websockets': ['websocket-client==0.57.0'], 'crypto': ['cryptography']},
     license='Apache 2.0',
     classifiers=[
@@ -104,7 +104,7 @@ setup(
         'Operating System :: MacOS :: MacOS X',
         'Operating System :: POSIX :: Linux',
         'Programming Language :: Python',
-        'Programming Language :: Python :: 3.8',
+        'Programming Language :: Python :: 3.12',
         'Topic :: System :: Software Distribution',
         'Topic :: System :: Systems Administration',
     ],