fix for python <3.12

Author: vincentsarago

src/titiler/extensions/pyproject.toml

@@ -30,7 +30,8 @@ classifiers = [
 ]
 dynamic = ["version"]
 dependencies = [
-    "titiler-core==2.0.0dev0"
+    "titiler-core==2.0.0dev0",
+    "typing-extensions; python_version < '3.12'"
 ]
 
 [project.optional-dependencies]

src/titiler/extensions/titiler/extensions/stac.py

@@ -1,12 +1,19 @@
 """rio-stac Extension."""
 
-from typing import Annotated, Any, Literal, TypedDict
+import sys
+from typing import Annotated, Any, Literal
 
 from attrs import define
 from fastapi import Depends, Query
 
 from titiler.core.factory import FactoryExtension, TilerFactory
 
+# Ref: https://docs.pydantic.dev/2.12/errors/usage_errors/#typed-dict-version
+if sys.version_info >= (3, 12):
+    from typing import TypedDict
+else:
+    from typing_extensions import TypedDict
+
 try:
     import pystac
     from pystac.utils import datetime_to_str, str_to_datetime