chore(integrations/registry): remove deprecated kustomize features

Signed-off-by: Artem <67638547+Stringls@users.noreply.github.com>

manifests/integrations/registry-credentials-sync/gcp/bind-irsa-patch.yaml

@@ -0,0 +1,9 @@
+# Bind to the GCP service-account
+---
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: credentials-sync
+  namespace: flux-system
+  annotations:
+    iam.gke.io/gcp-service-account: <name>@<project-id>.iam.gserviceaccount.com # set the GCP service-account

manifests/integrations/registry-credentials-sync/gcp/config-map-patch.yaml

@@ -7,14 +7,3 @@ data:
   GCR_REGISTRY: gcr.io  # set the registry
   KUBE_SECRET: gcr-credentials  # does not yet exist -- will be created in the same Namespace
   SYNC_PERIOD: "1800"  # 30m -- GCR tokens expire every hour; refresh faster than that
-
-
-# Bind to the GCP service-account
----
-apiVersion: v1
-kind: ServiceAccount
-metadata:
-  name: credentials-sync
-  namespace: flux-system
-  annotations:
-    iam.gke.io/gcp-service-account: <name>@<project-id>.iam.gserviceaccount.com # set the GCP service-account

manifests/integrations/registry-credentials-sync/gcp/kustomization.yaml

@@ -7,9 +7,10 @@ commonLabels:
 
 namespace: flux-system
 
-bases:
+resources:
 - ../_base
 
-patchesStrategicMerge:
-- config-patches.yaml
-- reconcile-patch.yaml
+patches:
+- path: config-map-patch.yaml
+- path: bind-irsa-patch.yaml
+- path: reconcile-patch.yaml