Turbopack: Remove the `lazy-regex` dependency (#82288)
Yes, `lazy_regex` makes this code slightly cleaner, and it does have the
nice side-effect of compile-time checking the regexes but:
- We've got test coverage for all of these regexes.
- It adds a proc macro, proc macros are detrimental to build
performance.
- It doesn't really clean up the code that much versus the new stdlib
`LazyLock`.
- This is the only crate using it.
So I don't think it's worth it.
