Polish "Add return type check on GetterPointcut"

See gh-30068

spring-aop/src/main/java/org/springframework/aop/support/Pointcuts.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2019 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -126,7 +126,7 @@ public abstract class Pointcuts {
 		@Override
 		public boolean matches(Method method, Class<?> targetClass) {
 			return (method.getName().startsWith("get") &&
-					method.getParameterCount() == 0 && 
+					method.getParameterCount() == 0 &&
 					method.getReturnType() != Void.TYPE);
 		}