next.js

c783ef8b - perf(turbopack): Use `Cow::into_owned` instead of `.to_string()` (#75216)

perf(turbopack): Use `Cow::into_owned` instead of `.to_string()` (#75216) ### What? `Cow::into_owned()` does not allocate in some cases, while `to_string()` always allocate. ### Why? In the name of the performance. ### How?