fix: adjust children snippet default type

Needs to be void so that zero args are passed to it
fixes #9744

.changeset/tasty-numbers-perform.md

@@ -0,0 +1,5 @@
+---
+'svelte': patch
+---
+
+fix: adjust children snippet default type

packages/svelte/elements.d.ts

@@ -66,7 +66,7 @@ export type MessageEventHandler<T extends EventTarget> = EventHandler<MessageEve
 export interface DOMAttributes<T extends EventTarget> {
 	// Implicit children prop every element has
 	// Add this here so that libraries doing `$props<HTMLButtonAttributes>()` don't need a separate interface
-	children?: import('svelte').Snippet<any>;
+	children?: import('svelte').Snippet<void>;
 
 	// Clipboard Events
 	'on:copy'?: ClipboardEventHandler<T> | undefined | null;