Fix continueOnError default value in java doc

Closes spring-projectsgh-14870

web/src/main/java/org/springframework/security/web/server/authentication/DelegatingServerAuthenticationConverter.java

@@ -61,7 +61,7 @@ public Mono<Authentication> convert(ServerWebExchange exchange) {
 	}
 
 	/**
-	 * Continue iterating when a delegate errors, defaults to {@code true}
+	 * Continue iterating when a delegate errors, defaults to {@code false}
 	 * @param continueOnError whether to continue when a delegate errors
 	 * @since 6.3
 	 */