Add an encapsulated file stream in axum-extra to make it more conveni… #5052

Job	Run time
cargo-hack	5m 40s
check-docs	33s
check	1m 47s
cargo-public-api-crates (axum)	32s
cargo-public-api-crates (axum-core)	21s
cargo-deny check (advisories)	25s
cargo-public-api-crates (axum-extra)	30s
dependencies-are-sorted	13s
cargo-deny check (bans licenses sources)	25s
Spell Check with Typos	3s
cargo-public-api-crates (axum-macros)	19s
test-nightly	1m 46s
test-msrv	2m 30s
armv5te-unknown-linux-musleabi	58s
test-docs	1m 40s
test-versions (stable)	3m 40s
wasm32-unknown-unknown	21s
test-versions (beta)	2m 44s
	24m 27s

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