Add Flux sync manifests

cluster/base/flux-system/gotk-sync.yaml

@@ -11,7 +11,7 @@ spec:
     branch: main
   secretRef:
     name: flux-system
-  url: ssh://git@github.com/SeanOMik/k3s-cluster
+  url: https://git.seanomik.net/seanomik/k3s-cluster.git
 ---
 apiVersion: kustomize.toolkit.fluxcd.io/v1
 kind: Kustomization
@@ -25,8 +25,3 @@ spec:
   sourceRef:
     kind: GitRepository
     name: flux-system
-  # Support decryption
-  decryption:
-    provider: sops
-    secretRef:
-      name: sops-gpg