fix: `clippy` "needless lifetimes" warning (closes #1825) (#1852) #961

Job	Run time
get-leptos-changed / Detect Source Change	8s
CI (integrations/actix) / Run ci (nightly)	15m 56s
CI (integrations/axum) / Run ci (nightly)	15m 7s
CI (integrations/utils) / Run ci (nightly)	15m 49s
CI (integrations/viz) / Run ci (nightly)	16m 7s
CI (leptos) / Run ci (nightly)	1h 34m 49s
CI (leptos_config) / Run ci (nightly)	17m 12s
CI (leptos_dom) / Run ci (nightly)	24m 19s
CI (leptos_macro) / Run ci (nightly)	32m 44s
CI (leptos_hot_reload) / Run ci (nightly)	14m 6s
CI (leptos_reactive) / Run ci (nightly)	40m 18s
CI (leptos_server) / Run ci (nightly)	26m 24s
CI (meta) / Run ci (nightly)	20m 28s
CI (router) / Run ci (nightly)	18m 46s
CI (server_fn) / Run ci (nightly)	14m 48s
CI (server_fn_macro) / Run ci (nightly)	14m 4s
CI (server_fn/server_fn_macro_default) / Run ci (nightly)	13m 35s
	6h 34m 40s

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