Add OptionalQuery extractor #4007

Job	Run time
cargo-hack	6m 59s
cargo-public-api-crates (axum)	1m 0s
cargo-public-api-crates (axum-core)	50s
cargo-public-api-crates (axum-extra)	57s
cargo-public-api-crates (axum-macros)	51s
check	2m 7s
check-docs	47s
cargo-deny check (advisories)	26s
dependencies-are-sorted	42s
cargo-deny check (bans licenses sources)	21s
Spell Check with Typos	3s
test-nightly	2m 23s
test-msrv	7m 29s
test-versions (stable)	4m 48s
armv5te-unknown-linux-musleabi	1m 12s
test-versions (beta)	2m 11s
test-docs	2m 35s
wasm32-unknown-unknown	33s
	36m 14s

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