Add `MethodFilter::CONNECT` (#2961) #4891

Job	Run time
check	42s
cargo-public-api-crates (axum)	31s
cargo-hack	2m 42s
cargo-public-api-crates (axum-core)	16s
cargo-deny check (advisories)	23s
check-docs	15s
cargo-public-api-crates (axum-extra)	26s
cargo-deny check (bans licenses sources)	24s
cargo-public-api-crates (axum-macros)	16s
dependencies-are-sorted	13s
Spell Check with Typos	3s
test-nightly	1m 17s
test-versions (stable)	1m 14s
armv5te-unknown-linux-musleabi	19s
test-versions (beta)	1m 24s
test-docs	1m 9s
test-msrv	1m 53s
wasm32-unknown-unknown	13s
	13m 40s

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