Fix misspelling of applicationListenerDectector variable

Closes gh-31006

spring-context/src/main/java/org/springframework/context/support/ApplicationListenerDetector.java

@@ -115,8 +115,8 @@ class ApplicationListenerDetector implements DestructionAwareBeanPostProcessor,
 	@Override
 	public boolean equals(@Nullable Object other) {
 		return (this == other ||
-				(other instanceof ApplicationListenerDetector applicationListenerDectector &&
+				(other instanceof ApplicationListenerDetector applicationListenerDetector &&
-				this.applicationContext == applicationListenerDectector.applicationContext));
+				this.applicationContext == applicationListenerDetector.applicationContext));
 	}
 
 	@Override