Rollup merge of #103719 - joseluis:fix-typos-try-reserve, r=the8472

fix typo in `try_reserve` method from `HashMap` and `HashSet`

Currently refers to the `reserve` method, instead of `try_reserve`. Other collections like [Vec](https://doc.rust-lang.org/std/vec/struct.Vec.html#method.try_reserve) & [VecDeque](https://doc.rust-lang.org/std/collections/vec_deque/struct.VecDeque.html#method.try_reserve) shows it well.

Author: GuillaumeGomez