## Summary
Last time I ran the `update_schemastore.py` script in ty, due to what I
assume was a `npm` version mismatch, the `package-lock.json` file was
updated while running `npm install` in the `schemastore`. Due to the use
of `git commit -a`, it was accidentally included in the commit for the
semi-automated schemastore PR. The solution here is to only add the
actual file that we want to commit.
Same as https://github.com/astral-sh/ty/pull/1391
## Test Plan
I did a dry-run of this script (by commenting out the final `push`) and
verified that the commit did include the schema, but not the updated
`package-lock.json` file.
