Add an encapsulated file stream in axum-extra to make it more conveni… #5051

Job	Run time
check-docs	33s
cargo-hack	5m 59s
check	1m 49s
cargo-public-api-crates (axum)	33s
cargo-public-api-crates (axum-core)	26s
dependencies-are-sorted	19s
Spell Check with Typos	4s
cargo-public-api-crates (axum-extra)	32s
cargo-deny check (advisories)	26s
cargo-deny check (bans licenses sources)	27s
cargo-public-api-crates (axum-macros)	29s
test-msrv	2m 26s
test-docs	1m 48s
armv5te-unknown-linux-musleabi	1m 2s
test-nightly	1m 48s
test-versions (stable)	3m 36s
wasm32-unknown-unknown	30s
test-versions (beta)	2m 39s
	25m 26s

Provide feedback