Implement `Into<JsValue>` for `Vec` #1451

Job	Run time
build_examples	5m 0s
build_benchmarks	1m 56s
build_nightly	3m 18s
Check	1m 46s
Verify that web-sys is compiled correctly	2m 3s
Clippy	7m 33s
dist_linux_aarch64_gnu	6m 17s
dist_linux_x86_64_musl	4m 53s
dist_macos_aarch64	3m 8s
dist_macos_x86_64	3m 1s
dist_windows	4m 9s
doc_api	1m 36s
doc_book	26s
Build and test the deno example	1m 24s
Rustfmt	28s
Run js-sys crate tests	4m 40s
Run native tests	3m 18s
Run wasm-bindgen crate tests with multithreading enabled	4m 6s
Test TypeScript output of wasm-bindgen	1m 41s
Run UI compile-fail tests	4m 4s
Run wasm-bindgen crate tests (unix)	14m 54s
Run web-sys crate tests	8m 24s
Run wasm-bindgen-webidl crate tests	3m 55s
test_examples	3m 14s
deploy	1m 49s
	1h 37m 3s

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