fix(jambo): Update legacy typing to built in types (#9)

* Migrate from `typing_extensions` to `typing` for supported Python versions, and update code to use modern type hinting with unions and annotations.

* Update type hinting to use lowercase generics for Python 3.9+ compatibility.

tests/parser/test_anyof_type_parser.py

@@ -1,6 +1,6 @@
 from jambo.parser.anyof_type_parser import AnyOfTypeParser
 
-from typing_extensions import Annotated, Union, get_args, get_origin
+from typing import Annotated, get_args, get_origin
 
 from unittest import TestCase
 
@@ -42,7 +42,7 @@ class TestAnyOfTypeParser(TestCase):
         )
 
         # check union type has string and int
-        self.assertEqual(get_origin(type_parsing), Union)
+        self.assertEqual(get_origin(type_parsing), type(str | int))
 
         type_1, type_2 = get_args(type_parsing)
 
@@ -67,7 +67,7 @@ class TestAnyOfTypeParser(TestCase):
         )
 
         # check union type has string and int
-        self.assertEqual(get_origin(type_parsing), Union)
+        self.assertEqual(get_origin(type_parsing), type(str | int))
 
         type_1, type_2 = get_args(type_parsing)
 

tests/parser/test_array_type_parser.py

@@ -1,6 +1,6 @@
 from jambo.parser import ArrayTypeParser
 
-from typing_extensions import get_args
+from typing import get_args
 
 from unittest import TestCase
 

tests/parser/test_const_type_parser.py

@@ -1,6 +1,6 @@
 from jambo.parser import ConstTypeParser
 
-from typing_extensions import Annotated, Literal, get_args, get_origin
+from typing import Annotated, Literal, get_args, get_origin
 
 from unittest import TestCase