fix: fix sched handler memory leak issue

source/libs/index/src/index.c

@@ -68,6 +68,7 @@ void indexInit() {
 void indexCleanup() {
   // refacto later
   taosCleanUpScheduler(indexQhandle);
+  taosMemoryFreeClear(indexQhandle);
   taosCloseRef(indexRefMgt);
 }
 

source/util/src/ttimer.c

@@ -606,6 +606,7 @@ void taosTmrCleanUp(void* handle) {
     taosUninitTimer();
 
     taosCleanUpScheduler(tmrQhandle);
+    taosMemoryFreeClear(tmrQhandle);
 
     for (int32_t i = 0; i < tListLen(wheels); i++) {
       time_wheel_t* wheel = wheels + i;