Remove duplicate zot-creds.yaml ExternalSecret

The zot-registry-credentials ExternalSecret was defined twice in argocd
namespace, causing ArgoCD duplicate resource warning. The image-updater-secret.yaml
already has the correct definition with the new Vault path (storage/zot).

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

argocd/image-updater-manifests/zot-creds.yaml

@@ -1,27 +0,0 @@
-apiVersion: external-secrets.io/v1
-kind: ExternalSecret
-metadata:
-  name: zot-registry-credentials
-  namespace: argocd
-spec:
-  refreshInterval: 1h
-  secretStoreRef:
-    kind: ClusterSecretStore
-    name: vault-backend
-  target:
-    name: zot-registry-credentials
-    creationPolicy: Owner
-    template:
-      type: kubernetes.io/dockerconfigjson
-      data:
-        .dockerconfigjson: |
-          {"auths":{"zot0213.kro.kr":{"username":"{{ .USERNAME }}","password":"{{ .PASSWORD }}","auth":"{{ printf "%s:%s" .USERNAME .PASSWORD | b64enc }}"}}}
-  data:
-    - secretKey: USERNAME
-      remoteRef:
-        key: zot
-        property: USERNAME
-    - secretKey: PASSWORD
-      remoteRef:
-        key: zot
-        property: PASSWORD

tekton/ci-cd/manifests/triggers/eventlistener.yaml

@@ -132,7 +132,7 @@ spec:
             containers:
               - resources:
                   requests:
-                    memory: "64Mi"
+                    memory: "128Mi"
                     cpu: "50m"
                   limits:
                     memory: "128Mi"