support required features in wasm examples showcase #32328

Job	Run time
build (windows-latest)	7m 0s
miri	5m 57s
build (ubuntu-latest)	3m 13s
run-examples-on-windows-dx12	16m 52s
build (macos-latest)	7m 3s
check-bevy-internal-imports	6s
check-doc	7m 17s
check-missing-examples-in-docs	38s
ci	3m 11s
check-missing-features-in-docs	36s
markdownlint	1m 10s
check-compiles	3m 42s
build-wasm	1m 24s
msrv	1m 30s
	59m 39s

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