Changed `write` functions of FileSystemSyncAccessHandle to accept immutable buffers #1290

Job	Run time
Rustfmt	19s
Check	2m 2s
Verify that web-sys is compiled correctly	1m 25s
Clippy	5m 49s
Run native tests	2m 48s
Run js-sys crate tests	3m 5s
Run wasm-bindgen crate tests with multithreading enabled	2m 23s
Run wasm-bindgen crate tests (unix)	12m 41s
Run web-sys crate tests	8m 51s
Run wasm-bindgen-webidl crate tests	3m 29s
build_benchmarks	1m 35s
build_examples	4m 12s
build_nightly	2m 40s
dist_linux_aarch64_gnu	4m 42s
dist_linux_x86_64_musl	3m 18s
dist_macos_aarch64	3m 25s
dist_macos_x86_64	5m 44s
dist_windows	4m 27s
doc_api	1m 22s
doc_book	11s
Build and test the deno example	1m 15s
Test TypeScript output of wasm-bindgen	1m 31s
Run UI compile-fail tests	2m 20s
test_examples	3m 37s
deploy	1m 10s
	1h 24m 21s

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