chore: don't warn when stabilized features are used (#2118) #1356

Job	Run time
get-leptos-changed / Detect Source Change	4s
CI (integrations/actix) / Run ci (nightly)	10m 12s
CI (integrations/utils) / Run ci (nightly)	10m 17s
CI (integrations/viz) / Run ci (nightly)	10m 3s
CI (integrations/axum) / Run ci (nightly)	10m 12s
CI (leptos) / Run ci (nightly)	10m 13s
CI (leptos_config) / Run ci (nightly)	9m 56s
CI (leptos_dom) / Run ci (nightly)	10m 7s
CI (leptos_hot_reload) / Run ci (nightly)	10m 6s
CI (leptos_macro) / Run ci (nightly)	10m 11s
CI (leptos_server) / Run ci (nightly)	10m 7s
CI (leptos_reactive) / Run ci (nightly)	10m 12s
CI (meta) / Run ci (nightly)	10m 5s
CI (router) / Run ci (nightly)	9m 55s
CI (server_fn) / Run ci (nightly)	10m 2s
CI (server_fn_macro) / Run ci (nightly)	9m 48s
CI (server_fn/server_fn_macro_default) / Run ci (nightly)	9m 55s
	2h 41m 25s

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