feat: break out crds into separate fluxcd/Kustomization

cluster/base/core.yaml

@@ -6,6 +6,8 @@ metadata:
   namespace: flux-system
 spec:
   interval: 10m0s
+  dependsOn:
+  - name: crds
   path: ./cluster/core
   prune: false
   sourceRef:

cluster/base/crds.yaml

@@ -0,0 +1,13 @@
+---
+apiVersion: kustomize.toolkit.fluxcd.io/v1beta1
+kind: Kustomization
+metadata:
+  name: crds
+  namespace: flux-system
+spec:
+  interval: 10m0s
+  path: ./cluster/crds
+  prune: false
+  sourceRef:
+    kind: GitRepository
+    name: flux-system