chore: Disallow prints to stdout #1798

Job	Run time
get-leptos-changed / Detect Source Change	5s
CI (integrations/actix) / Run ci (nightly-2024-01-29)	11m 21s
CI (integrations/axum) / Run ci (nightly-2024-01-29)	11m 28s
CI (integrations/utils) / Run ci (nightly-2024-01-29)	10m 39s
CI (leptos) / Run ci (nightly-2024-01-29)	24m 32s
CI (leptos_config) / Run ci (nightly-2024-01-29)	10m 12s
CI (leptos_dom) / Run ci (nightly-2024-01-29)	17m 12s
CI (leptos_hot_reload) / Run ci (nightly-2024-01-29)	10m 45s
CI (leptos_macro) / Run ci (nightly-2024-01-29)	23m 18s
CI (leptos_reactive) / Run ci (nightly-2024-01-29)	24m 6s
CI (leptos_server) / Run ci (nightly-2024-01-29)	15m 57s
CI (meta) / Run ci (nightly-2024-01-29)	10m 48s
CI (router) / Run ci (nightly-2024-01-29)	12m 4s
CI (server_fn) / Run ci (nightly-2024-01-29)	23m 30s
CI (server_fn_macro) / Run ci (nightly-2024-01-29)	10m 27s
CI (server_fn/server_fn_macro_default) / Run ci (nightly-2024-01-29)	10m 44s
	3h 47m 8s

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