Upgrade flutter_rust_bridge to v2.2.0 #2158

Job	Run time
build (macos)	6m 30s
build (linux)	5m 17s
build (windows)	7m 10s
dartfmt	55s
ktfmt	11s
rustdoc (linux)	3m 58s
rustfmt	13s
rustdoc (macos)	2m 39s
rustdoc (windows)	5m 13s
swiftformat	8s
clippy (linux)	3m 5s
dartanalyze	57s
clippy (macos)	2m 43s
clippy (windows)	5m 36s
test (example, ${{ matrix.platform }})	0s
pr	0s
dart pub publish (pub.dev)	0s
release (GitHub)	0s
	44m 35s

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