chore: Bump cpp-linter to v1.12.1 (#420)

Also drops support for python 3.9

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: shenxianpeng <3353385+shenxianpeng@users.noreply.github.com>

Author: Copilot

pyproject.toml

@@ -1,13 +1,13 @@
 [project]
 name = "cpp-linter-action"
 version = "0.0.0+private_virtual"
-requires-python = ">=3.9"
+requires-python = ">=3.10"
 dependencies = []
 
 [dependency-groups]
 action = [
     "clang-tools==0.17.0",
-    "cpp-linter==1.12.0",
+    "cpp-linter==1.12.1",
 ]
 dev = [
     "mypy>=1.17.1",