Remove unused rustversion dependency of axum-core (#3502) #5782

Job	Run time
check	44s
cargo-hack	2m 45s
cargo-public-api-crates (axum-core)	22s
cargo-public-api-crates (axum-macros)	27s
cargo-public-api-crates (axum)	42s
cargo-deny check (advisories)	29s
cargo-public-api-crates (axum-extra)	34s
cargo-deny check (bans licenses sources)	26s
check-docs	28s
dependencies-are-sorted	5s
Spell Check with Typos	6s
test-versions (beta)	1m 18s
test-versions (stable)	1m 25s
armv5te-unknown-linux-musleabi	41s
test-msrv	2m 17s
test-nightly	1m 8s
test-docs	1m 7s
wasm32-unknown-unknown	26s
	15m 30s

Provide feedback