gh-1027: Use the official astral hook for ty

[paddyroddy]

Description

https://github.com/astral-sh/ty-pre-commit finally exists. In #926 we migrated from mypy to ty. Some further work was done in #1091 to make it more reliable. Now we can go back to simple pre-commit. There are a fair amount of options to investigate.

Closes: #1027

Changelog entry

Changed: ty is now run through pre-commit

Checks

• Is your code passing linting?
• Is your code passing tests?
• Have you added additional tests (if required)?
• Have you modified/extended the documentation (if required)?
• Have you added a one-liner changelog entry above (if required)?

[Copilot]

Pull request overview

Updates the project’s type-checking workflow to run ty via the official astral-sh/ty-pre-commit hook again, simplifying the nox lint session to rely on prek/pre-commit for running checks.

Changes:

• Add the official ty-pre-commit hook and configure it to run with the lint dependency group.
• Remove the explicit ty check invocation from the nox -s lint session and forward nox positional args to prek.
• Expand the lint dependency group to include packages needed for ty to analyze the configured source set.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 3 comments.

File	Description
pyproject.toml	Expands the lint dependency group to support running ty via pre-commit/uv groups.
noxfile.py	Simplifies the lint session to run only prek (pre-commit hooks), with forwarded posargs.
.pre-commit-config.yaml	Adds the official astral-sh/ty-pre-commit hook and configures its execution flags.

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[Copilot]

Pull request overview

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.