fix(actions): wait for argocd initial admin secret to be created

.forgejo/workflows/validate.yaml

@@ -40,6 +40,9 @@ jobs:
             -n argocd
           kubectl wait --for=condition=available --timeout=60s \
             deployment/sealed-secrets-controller -n kube-system
+          until kubectl get secret argocd-initial-admin-secret -n argocd 2>/dev/null; do
+            echo "Waiting for argocd-initial-admin-secret..."; sleep 3
+          done
 
       - name: Import SealedSecrets key
         env: