Fix: Replace typing_extensions with stdlib typing and drop typer[all]

Replace `from typing_extensions import Annotated` with
`from typing import Annotated` in all source modules. The
Annotated type has been available in the standard library
typing module since Python 3.9.

Update pyproject.toml:
- Change typer[all]>=0.15,<0.22 to typer>=0.15 since
  the [all] extra was removed in Typer 0.22.0 (rich and
  shellingham are now bundled by default)
- Bump requires-python from >=3.8 to >=3.9 (Typer 0.21+
  already requires Python >=3.9)
- Update classifiers to replace Python 3.8 with 3.9

Change-Id: I0656815c27538f453850046042afaf1c6d7f3b2f
Co-Authored-By: Claude <noreply@anthropic.com>
Signed-off-by: Matthew Watkins <mwatkins@linuxfoundation.org>

Author: ModeSevenIndustrialSolutions

pyproject.toml

@@ -4,7 +4,7 @@ name = "gerrit-to-platform"
 dynamic = ["version"]
 description = "Gerrit to GitHub / GitLab"
 readme = "README.rst"
-requires-python = ">=3.8"
+requires-python = ">=3.9"
 license = {file = "LICENSE.txt"}
 
 authors = [
@@ -27,7 +27,7 @@ classifiers = [
     "Natural Language :: English",
     "Operating System :: POSIX :: Linux",
     "Programming Language :: Python",
-    "Programming Language :: Python :: 3.8",
+    "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
     "Topic :: Software Development :: Build Tools",
@@ -38,7 +38,7 @@ classifiers = [
 
 dependencies = [
     "ghapi~=1.0.3",
-    "typer[all]>=0.15,<0.22",
+    "typer>=0.15",
     "xdg~=5.1.1"
 ]
 

src/gerrit_to_platform/change_merged.py

@@ -9,8 +9,9 @@
 ##############################################################################
 """Handler for patchset-created events."""
 
+from typing import Annotated
+
 import typer
-from typing_extensions import Annotated
 
 from gerrit_to_platform.helpers import (
     find_and_dispatch,

src/gerrit_to_platform/comment_added.py

@@ -13,9 +13,9 @@
 import re
 import time
 from pathlib import Path
+from typing import Annotated
 
 import typer
-from typing_extensions import Annotated
 
 from gerrit_to_platform.config import get_mapping
 from gerrit_to_platform.helpers import (

src/gerrit_to_platform/patchset_created.py

@@ -9,8 +9,9 @@
 ##############################################################################
 """Handler for patchset-created events."""
 
+from typing import Annotated
+
 import typer
-from typing_extensions import Annotated
 
 from gerrit_to_platform.helpers import (
     find_and_dispatch,