feat(bindings/ruby): Add I/O class for Ruby #8145

Job	Run time
build-cpp-doc	19s
build-c-doc	21s
build-dav-server-opendalfs-doc	46s
build-haskell-doc	10m 26s
build-fuse3-opendal-doc	48s
build-java-doc	13s
build-lua-doc	9s
build-nodejs-doc	18s
build-object-store-opendal-doc	45s
build-ocaml-doc	4m 54s
build-opendal-compat-doc	38s
build-parquet-opendal-doc	49s
build-python-doc	3m 14s
build-rust-doc	3m 50s
build-virtiofs-opendal-doc	44s
build-unftp-sbe-opendal-doc	1m 10s
build-website	1m 19s
	30m 43s

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