[examples/raytrace-parallel] Replace Bash with Python for Windows compatibility #1460

Job	Run time
Rustfmt	14s
Check	2m 18s
Verify that web-sys is compiled correctly	2m 8s
Clippy	7m 14s
Build and test the deno example	1m 25s
Run js-sys crate tests	3m 48s
Run native tests	3m 8s
Run wasm-bindgen crate tests with multithreading enabled	2m 14s
Test TypeScript output of wasm-bindgen	1m 53s
Run UI compile-fail tests	4m 23s
Run wasm-bindgen crate tests (unix)	14m 49s
Run web-sys crate tests	7m 35s
Run wasm-bindgen-webidl crate tests	4m 3s
build_benchmarks	1m 49s
build_examples	4m 39s
build_nightly	2m 54s
dist_linux_aarch64_gnu	4m 16s
dist_linux_x86_64_musl	3m 59s
dist_macos_aarch64	4m 16s
dist_macos_x86_64	5m 43s
dist_windows	5m 14s
doc_api	2m 7s
doc_book	11s
test_examples	4m 31s
deploy	1m 53s
	1h 36m 44s

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