Implement FromRequest for BytesMut #4398

Job	Run time
cargo-hack	3m 4s
check	41s
check-docs	22s
cargo-public-api-crates (axum)	30s
cargo-deny check (advisories)	23s
cargo-deny check (bans licenses sources)	26s
cargo-public-api-crates (axum-core)	19s
dependencies-are-sorted	24s
cargo-public-api-crates (axum-extra)	26s
Spell Check with Typos	4s
cargo-public-api-crates (axum-macros)	16s
test-docs	1m 29s
armv5te-unknown-linux-musleabi	22s
test-nightly	1m 34s
test-msrv	2m 22s
test-versions (stable)	1m 22s
test-versions (beta)	1m 26s
wasm32-unknown-unknown	12s
	15m 42s

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