Remove cap-async-std. (#399) #1807

Job	Run time
Check Cross-Compilation on Rust nightly (nightly)	2m 3s
Check Cross-Compilation (stable)	1m 29s
Check Cross-Compilation (beta)	1m 38s
Rustfmt	8s
Check Cross-Compilation on Windows (stable)	1m 57s
Check Cross-Compilation on Windows (beta)	1m 42s
Check Cross-Compilation on Rust nightly on Windows (nightly)	2m 8s
Test (macos-latest)	39s
Test (windows-latest)	1m 57s
Fuzz Targets	1m 0s
Test linux-raw support (ubuntu)	31s
Test (macos-13)	1s
Test (msrv)	4m 5s
Test (ubuntu-22.04)	29s
Test on Musl (ubuntu)	45s
Test (beta)	31s
Test (aarch64-ubuntu)	2m 39s
Test (windows-2022)	1m 54s
Test (stable)	30s
Test with Rust nightly (windows)	2m 0s
Test linux-raw support (ubuntu-22.04)	30s
Test with Rust nightly (ubuntu)	31s
	29m 7s

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