Bump version to 22.0.0-rc.2.1 (#1366) #4354

Job	Run time
fmt	12s
check-git-rev-deps	14s
build-fuzz	3m 47s
docs	6m 49s
build-and-test (msrv, ubuntu-latest, x86_64-unknown-linux-gnu)	13m 35s
cargo-deny (advisories)	1m 12s
build-and-test (msrv, ubuntu-latest, aarch64-unknown-linux-gnu, true)	8m 45s
readme	5m 27s
build-and-test (msrv, windows-latest, x86_64-pc-windows-msvc)	17m 2s
build-and-test (latest, ubuntu-latest, x86_64-unknown-linux-gnu)	15m 27s
semver-checks	6m 3s
cargo-deny (bans licenses sources)	47s
build-and-test (latest, ubuntu-latest, aarch64-unknown-linux-gnu, true)	8m 16s
build-and-test (latest, windows-latest, x86_64-pc-windows-msvc)	19m 0s
publish-dry-run (ubuntu-latest, wasm32-unknown-unknown) / publish-dry-run / publish-dry-run	5m 46s
publish-dry-run (ubuntu-latest, x86_64-unknown-linux-gnu, --feature-powerset --exclude-features d... / publish-dry-run / publish-dry-run	7m 36s
complete	1s
	1h 59m 59s

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