[Chore](tools)Set the deadlock detection switch to on by default

We have already turned on this setting for the P0 regression cases, and after observing for some time, I believe we can make this switch enabled by default.

fe/fe-common/src/main/java/org/apache/doris/common/Config.java

@@ -3138,7 +3138,7 @@ public static int metaServiceRpcRetryTimes() {
     //                      start of lock config
     @ConfField(description = {"是否开启死锁检测",
             "Whether to enable deadlock detection"})
-    public static boolean enable_deadlock_detection = false;
+    public static boolean enable_deadlock_detection = true;
 
     @ConfField(description = {"死锁检测间隔时间，单位分钟",
             "Deadlock detection interval time, unit minute"})