Remove curly braces in Raycaster constructor docs (#22908)

Co-authored-by: DolphinIQ <[email protected]>

docs/api/en/core/Raycaster.html

@@ -70,7 +70,7 @@
 
 		<h2>Constructor</h2>
 
-		<h3>[name]( [param:Vector3 origin], [param:Vector3 direction], [param:Float near], [param:Float far] ) {</h3>
+		<h3>[name]( [param:Vector3 origin], [param:Vector3 direction], [param:Float near], [param:Float far] )</h3>
 		<p>
 		[page:Vector3 origin] — The origin vector where the ray casts from.<br />
 		[page:Vector3 direction] — The direction vector that gives direction to the ray. Should be normalized.<br />

docs/api/zh/core/Raycaster.html

@@ -72,7 +72,7 @@
 
 		<h2>构造器</h2>
 
-		<h3>[name]( [param:Vector3 origin], [param:Vector3 direction], [param:Float near], [param:Float far] ) {</h3>
+		<h3>[name]( [param:Vector3 origin], [param:Vector3 direction], [param:Float near], [param:Float far] )</h3>
 		<p>
 		[page:Vector3 origin] —— 光线投射的原点向量。<br />
 		[page:Vector3 direction] —— 向射线提供方向的方向向量，应当被标准化。<br />