fix: Hang when canceling leader election information

Hang when canceling leader election information.
Occasionally, two leaders may run simultaneously.

Author: jiuker

staging/src/k8s.io/client-go/tools/leaderelection/leaderelection.go

@@ -304,7 +304,9 @@ func (le *LeaderElector) release() bool {
 		RenewTime:            now,
 		AcquireTime:          now,
 	}
-	if err := le.config.Lock.Update(context.TODO(), leaderElectionRecord); err != nil {
+	timeoutCtx, timeoutCancel := context.WithTimeout(context.Background(), le.config.RenewDeadline)
+	defer timeoutCancel()
+	if err := le.config.Lock.Update(timeoutCtx, leaderElectionRecord); err != nil {
 		klog.Errorf("Failed to release lock: %v", err)
 		return false
 	}