BREAK: drop support for Python 3.9 (#37)

* MAINT: update syntax to Python 3.10

Author: redeboer

pyproject.toml

@@ -18,7 +18,6 @@ classifiers = [
     "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: 3.13",
     "Programming Language :: Python :: 3.14",
-    "Programming Language :: Python :: 3.9",
     "Programming Language :: Python",
     "Topic :: Documentation",
     "Topic :: Utilities",
@@ -40,7 +39,7 @@ keywords = [
 license = {text = "BSD 3-Clause License"}
 maintainers = [{email = "[email protected]"}]
 name = "sphinx-api-relink"
-requires-python = ">=3.9"
+requires-python = ">=3.10"
 
 [project.readme]
 content-type = "text/markdown"

src/sphinx_api_relink/linkcode.py

@@ -7,7 +7,7 @@
 import sys
 from functools import cache, lru_cache
 from os.path import dirname, relpath
-from typing import TYPE_CHECKING, Any, Callable, TypedDict
+from typing import TYPE_CHECKING, Any, TypedDict
 from urllib.parse import quote
 
 import requests
@@ -16,6 +16,7 @@
 from sphinx_api_relink.helpers import print_once
 
 if TYPE_CHECKING:
+    from collections.abc import Callable
     from types import ModuleType