chore: update matchit to 0.8 #4469

Job	Run time
cargo-hack	5m 54s
check-docs	38s
check	2m 17s
cargo-public-api-crates (axum)	59s
cargo-public-api-crates (axum-core)	45s
cargo-deny check (advisories)	25s
cargo-public-api-crates (axum-extra)	55s
dependencies-are-sorted	39s
cargo-deny check (bans licenses sources)	23s
Spell Check with Typos	6s
cargo-public-api-crates (axum-macros)	48s
test-msrv	4m 21s
test-nightly	2m 23s
armv5te-unknown-linux-musleabi	57s
test-docs	2m 8s
test-versions (stable)	2m 53s
test-versions (beta)	3m 57s
wasm32-unknown-unknown	34s
	31m 2s

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