Add an encapsulated file stream in axum-extra to make it more conveni… #5049

Job	Run time
check	56s
cargo-hack	5m 23s
dependencies-are-sorted	16s
cargo-public-api-crates (axum)	31s
cargo-deny check (advisories)	26s
Spell Check with Typos	5s
cargo-deny check (bans licenses sources)	30s
cargo-public-api-crates (axum-core)	23s
check-docs	25s
cargo-public-api-crates (axum-extra)	28s
cargo-public-api-crates (axum-macros)	18s
test-nightly	1m 40s
test-msrv	1m 48s
test-docs	1m 31s
armv5te-unknown-linux-musleabi	48s
test-versions (stable)	3m 16s
wasm32-unknown-unknown	15s
test-versions (beta)	1m 14s
	20m 13s

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