fix(stacks-instances): 🚑 add ci-sizer registry entry for dev.t09.de

Create ci-sizer-reg ArgoCD app-of-apps to manage the sizer-receiver
after migration from garm namespace. Restores sizer.dev.t09.de ingress.

otc/dev.t09.de/registry/ci-sizer.yaml

@@ -0,0 +1,24 @@
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: ci-sizer-reg
+  namespace: argocd
+  labels:
+    env: dev
+  finalizers:
+    - resources-finalizer.argocd.argoproj.io
+spec:
+  destination:
+    name: in-cluster
+    namespace: argocd
+  source:
+    path: "otc/dev.t09.de/stacks/ci-sizer"
+    repoURL: "https://edp.buildth.ing/DevFW-CICD/stacks-instances"
+    targetRevision: HEAD
+  project: default
+  syncPolicy:
+    automated:
+      prune: true
+      selfHeal: true
+    syncOptions:
+      - CreateNamespace=true