Turbopack: Support ECMAScript styleregex with negative lookahead in `require.context` calls (#78251)
Add support for more ECMASCRIPT style regular expressions via the `regress` regex engine in order to support `require.context` calls with complex filters.
We still prefer the `regex` crate when possible as it performs better but fall back to `regress` when the regular expression uses unsupported features.
This should improve webpack compatibility for `require.context` calls.
Closes PACK-3895