zarrs_opendal: prepare 0.4.0 release #810

Job	Run time
build_and_test_windows	5m 27s
build_and_test (stable, --features "")	2m 9s
clippy	52s
codecov	1m 28s
build_and_test (stable, --all-features)	2m 48s
build_and_test_macos (macos-13)	2m 45s
build_and_test (stable, --no-default-features)	2m 4s
build_and_test_macos (macos-latest)	1m 48s
fmt	31s
build_and_test (1.77, --features "")	2m 6s
minimal-versions	37s
build_and_test (1.77, --all-features)	2m 49s
build_and_test (1.77, --no-default-features)	1m 41s
semver	1m 42s
build_and_test (beta, --features "")	2m 14s
build_and_test (beta, --all-features)	2m 34s
build_and_test (beta, --no-default-features)	1m 34s
build_and_test (nightly, --features "")	1m 20s
build_and_test (nightly, --all-features)	1m 46s
build_and_test (nightly, --no-default-features)	1m 8s
	39m 23s

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