Add meta checks for pre-commit config

[samaloney]

Enable pre-commit meta checks to avoid bugs like #213

[Cadair]

The CI is failing because the pre-commit is failing on the rendered template:

E       Check for useless excludes...............................................Failed
E       - hook id: check-useless-excludes
E       - exit code: 1
E       
E       The exclude pattern '.*(.fits|.fts|.fit|.header|.txt|tca.*|extern.*|packagename/extern)$' for isort does not match any files
E       The exclude pattern '.*(.fits|.fts|.fit|.header|.txt)$' for trailing-whitespace does not match any files
E       The exclude pattern '.*(.fits|.fts|.fit|.header|.txt|tca.*|.json)$|^CITATION.rst$' for end-of-file-fixer does not match any files
E       The exclude pattern '.*(.fits|.fts|.fit|.header|.txt|tca.*)$' for mixed-line-ending does not match any files
E       
E       codestyle: exit 1 (1.49 seconds) /tmp/pytest-of-runner/pytest-0/test_tox_runs_bake_examples_ur0/cookies/bake00/packagename/.tmp/codestyle> pre-commit run --color always --all-files --show-diff-on-failure pid=8141
E       codestyle: FAIL ✖ in 3.21 seconds

https://github.com/sunpy/package-template/actions/runs/18836782731/job/53739487426?pr=226#step:10:1241

[samaloney]

Hum I can remove the the meta hook but seems to defeat the purpose or alternatively create a dummy file?

[Cadair]

I'd be ok with a dummy file, but we should have it be removed here: https://github.com/sunpy/package-template/blob/main/hooks/post_gen_project.py#L53 if "include_example_code" is False.

[samaloney]

So the if unless we keep some test files in the repo, even if include_example_code is False running pre-commit on a freshly minted package would fail. So I commented the check out and left a comment explaining.

I think we could probably use the files, types or types_or to set the files we want the checks to run on rather then excluding those we don't but I leave that for a different PR