fix: align pre-commit mypy config with Python 3.12 and clean up type ignores

[chenrui333]

seeing some errors when running mypy hook

> pre-commit run mypy --all-files
mypy.....................................................................Failed
- hook id: mypy
- exit code: 2

/Users/rchen/.cache/pre-commit/repo84npudj6/py_env-python3.14/lib/python3.14/site-packages/ansible/template/__init__.py:363: error: Type parameter lists are only supported in Python 3.12 and greater  [syntax]
/Users/rchen/.cache/pre-commit/repo84npudj6/py_env-python3.14/lib/python3.14/site-packages/ansible/template/__init__.py:363: note: See https://mypy.rtfd.io/en/stable/_refs.html#code-syntax for more info

[alisonlhart]

Errors resolved in #4846