[platform] Added resource-policy to keep installed packages

Signed-off-by: Myasnikov Daniil <myasnikovdaniil2001@gmail.com>

packages/core/platform/templates/_helpers.tpl

@@ -13,6 +13,8 @@ apiVersion: cozystack.io/v1alpha1
 kind: Package
 metadata:
   name: {{ $name }}
+  annotations:
+    helm.sh/resource-policy: keep
 spec:
   variant: {{ $variant }}
 {{- if $components }}
@@ -40,6 +42,8 @@ apiVersion: cozystack.io/v1alpha1
 kind: Package
 metadata:
   name: {{ $name }}
+  annotations:
+    helm.sh/resource-policy: keep
 spec:
   variant: {{ $variant }}
 {{- end }}