build: use Recreate strategy for qbittorrent

qbittorrent holds an exclusive lockfile on /config; rolling updates
deadlock because the new pod can't acquire the lock until the old one
is gone.

custom_helm_charts/qbittorrent/templates/deployment.yaml

@@ -9,6 +9,8 @@ metadata:
     heritage: {{ .Release.Service }}
 spec:
   replicas: {{ .Values.replicaCount }}
+  strategy:
+    type: Recreate
   selector:
     matchLabels:
       app: {{ template "qbittorrent.name" . }}