idle mistake, fetch_add instead load

[marakew]

zedio/zedio/runtime/multi_thread/idle.hpp

Line 31 in 35d9577

auto state = state_.load(order);

https://github.com/tokio-rs/tokio/blob/6fcd9c02176bf3cd570bc7de88edaa3b95ea480a/tokio/src/runtime/scheduler/multi_thread/idle.rs#L154

tokio-rs/tokio@7c8b887

yes may be its more tokio related issues
but anyway

[8sileus]

Yes
Thanks for your reminding, mistakes have been corrected.

A load operation with this memory order performs an acquire operation, a store performs a release operation, and read-modify-write performs both an acquire operation and a release operation, plus a single total order exists in which all threads observe all modifications in the same order