Unrolled build for rust-lang#133829

Rollup merge of rust-lang#133829 - GrigorenkoPV:fetch_update_infallible, r=Noratrieb

Implement `AtomicT::update` & `AtomicT::try_update`

ACP accepted in rust-lang/libs-team#490

``@rustbot`` label +T-libs-api

Author: rust-timer