feat(bindings/ruby): Add simple operators to Ruby binding #7938

Job	Run time
build-c-doc	44s
build-cpp-doc	33s
build-java-doc	18s
build-lua-doc	8s
build-nodejs-doc	20s
build-python-doc	3m 10s
build-rust-doc	4m 54s
build-fuse3-opendal-doc	50s
build-dav-server-opendalfs-doc	50s
build-object-store-opendal-doc	49s
build-ocaml-doc	4m 47s
build-haskell-doc	3m 18s
build-opendal-compat-doc	1m 9s
build-parquet-opendal-doc	56s
build-unftp-sbe-opendal-doc	1m 21s
build-virtiofs-opendal-doc	39s
build-website	2m 27s
	27m 13s

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