🔧 Disable PDB for Valkey with single replica (#1749)

With `primary.replicaCount=1` and `replica.replicaCount=0`, the
default Pod Disruption Budget `maxUnavailable=1` prevents proper
pod rolling during deployments. Kubernetes cannot safely evict the
only available pod, blocking updates.

Disable PDB creation for both primary and replica configurations
to allow smooth rolling updates in single-pod scenarios.

Author: rblaine95

helm/acapy-cloud/conf/valkey.yaml

@@ -14,6 +14,8 @@ primary:
     whenDeleted: Delete
   podLabels:
     sidecar.istio.io/inject: "false"
+  pdb:
+    create: false
 replica:
   replicaCount: 0
   resourcesPreset: nano
@@ -26,3 +28,5 @@ replica:
   podLabels:
     sidecar.istio.io/inject: "false"
   podManagementPolicy: Parallel
+  pdb:
+    create: false