Update TF DLC python version to py312

Author: sirutBuasai

tests/conftest.py

@@ -554,7 +554,9 @@ def _tf_py_version(tf_version, request):
         return "py38"
     if Version("2.8") <= version < Version("2.12"):
         return "py39"
-    return "py310"
+    if Version("2.12") <= version < Version("2.19"):
+        return "py310"
+    return "py312"
 
 
 @pytest.fixture(scope="module")