fix: use patched Caddy ingress image with ACME storage fix

Switch from caddy/ingress:latest to ghcr.io/laconicnetwork/caddy-ingress:latest
which has the List()/Stat() fix for secret_store. This fixes multi-domain
ACME provisioning deadlock where the second domain's cert request fails
because List() returns mangled keys and Stat() returns wrong IsTerminal.

Source: LaconicNetwork/ingress@109d69a (fix/acme-account-reuse branch)

Fixes: so-o2o (partially — etcd backup investigation still needed)
Closes: ds-v22v (Caddy sequential provisioning no longer needed)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

stack_orchestrator/data/k8s/components/ingress/ingress-caddy-kind-deploy.yaml

@@ -186,8 +186,8 @@ spec:
           operator: Equal
       containers:
         - name: caddy-ingress-controller
-          image: caddy/ingress:latest
+          image: ghcr.io/laconicnetwork/caddy-ingress:latest
-          imagePullPolicy: IfNotPresent
+          imagePullPolicy: Always
           ports:
             - name: http
               containerPort: 80