pre-commit uv lock check

[nssalian]

Rationale for this change

In #2928, the uv.lock wasn't generated correctly after a dependency change.
Adding the following changes:

1. make uv-lock to generate one when modifying dependencies
2. make uv-lock-check to check if the uv.lock is up to date
3. Adding a pre-commit config to check the uv.lock and fail if not updated correctly (uses 2.)
4. Documentation change in mkdocs/docs/contributing.md to add instructions for contributors.

Are these changes tested?

Locally.
Added some of the dependencies in #2928 without modifying the lock file and ran pre-commit run --all-files to observe the following failure message

uv lock file check.......................................................Failed
- hook id: uv-lock-check
- exit code: 2

uv lock --check 
Resolved 221 packages in 93ms
The lockfile at `uv.lock` needs to be updated, but `--check` was provided. To update the lockfile, run `uv lock`.
make: *** [uv-lock-check] Error 1

Are there any user-facing changes?

No. Useful for contributions that change versions/ dependencies.

[Fokko]

Great suggestion @nssalian Thanks for adding this. I left one minor comment 👍

[kevinjqliu]

tested out the same scenario manually.

[kevinjqliu]

i also noticed that git commit does not trigger pre-commit check, #2933 should fix this

[kevinjqliu]

Thanks for the PR @nssalian and thanks @Fokko for the review