build(rust): bump version to `0.3.4` #197

Job	Run time
cargo audit	1m 14s
build-doc	6m 53s
cargo fmt	1m 9s
wit-deps-aarch64-unknown-linux-musl	9m 42s
cargo clippy	5m 50s
wit-deps-aarch64-apple-darwin	4m 58s
cargo nextest	3m 54s
wit-deps-armv7-unknown-linux-musleabihf	8m 57s
wit-deps-x86_64-apple-darwin	3m 56s
wit-deps-x86_64-pc-windows-gnu	4m 23s
wit-deps-x86_64-unknown-linux-musl	4m 33s
deploy-doc	22s
oci	2m 40s
wit-deps-universal-darwin	18s
release	0s
	58m 49s

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