Add filter to git hook (dev qol) #85159
Currently the git hook takes every change you have and starts the filter from there and bypasses the "all" filter.
This changes it so the files from the git hook are filtered through "all" first.
I considered adding the filter at https://github.com/microsoft/vscode/blob/master/build/gulpfile.hygiene.js#L332 instead, but this seems like a more targeted fix.
I was also thinking that, but I wasn't sure if there was a scenario where we would want to just hygiene exactly what the caller passed (i.e it was intentional to pass in a file not listed by the