Make `catch` thread safe #1877

Job	Run time
Clippy	5m 15s
Check	55s
build_examples	3m 14s
build_benchmarks	52s
build_nightly	1m 33s
Verify that web-sys is compiled correctly	51s
dist_linux_aarch64_gnu	2m 54s
dist_linux_x86_64_musl	2m 32s
dist_macos_aarch64	1m 53s
dist_macos_x86_64	1m 33s
dist_windows	3m 33s
doc_api	1m 5s
doc_book	7s
Rustfmt	7s
Build and test the deno example	58s
Run js-sys crate tests	2m 16s
Run native tests	1m 41s
Run wasm-bindgen crate tests with multithreading enabled	1m 21s
Test TypeScript output of wasm-bindgen	1m 18s
Run UI compile-fail tests	41s
Run wasm-bindgen crate tests (unix)	8m 5s
Run web-sys crate tests	4m 11s
Run wasm-bindgen-webidl crate tests	1m 52s
test_examples	1m 50s
deploy	29s
	51m 6s

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