very preliminary unshielded await rule #35727

Job	Run time
cargo fmt	19s
Determine changes	9s
mkdocs	2m 40s
pre-commit	34s
python package	1m 27s
benchmarks	8m 12s
cargo build (msrv)	3m 57s
cargo clippy	1m 13s
cargo build (release)	4m 49s
cargo fuzz	5m 21s
cargo shear	21s
cargo test (linux)	4m 9s
cargo test (wasm)	1m 29s
cargo test (windows)	8m 3s
formatter instabilities and black similarity	0s
test scripts	46s
test ruff-lsp	38s
ecosystem	3m 54s
Fuzz the parser	0s
	48m 1s

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