chore: fix poddisruptionbudget-gateway.yaml run with old helm issue

issue: matrixorigin/MO-Cloud#2499

Author: xzxiong

charts/loki/templates/gateway/poddisruptionbudget-gateway.yaml

@@ -1,8 +1,5 @@
 {{- if and .Values.gateway.enabled }}
-{{- if or 
-  (and (not .Values.gateway.autoscaling.enabled) (gt (int .Values.gateway.replicas) 1)) 
-  (and .Values.gateway.autoscaling.enabled (gt (int .Values.gateway.autoscaling.minReplicas) 1))
-}}
+{{- if or (and (not .Values.gateway.autoscaling.enabled) (gt (int .Values.gateway.replicas) 1)) (and .Values.gateway.autoscaling.enabled (gt (int .Values.gateway.autoscaling.minReplicas) 1)) }}
 apiVersion: policy/v1
 kind: PodDisruptionBudget
 metadata: