feat: implement mjfilter file for templates (#1244)

* feat: implement mjfilter file for templates

Signed-off-by: Devin Buhl <devin@buhl.casa>

* fix: use data.get in mjfilters

Signed-off-by: Devin Buhl <devin@buhl.casa>

---------

Signed-off-by: Devin Buhl <devin@buhl.casa>

bootstrap/templates/kubernetes/apps/tools/system-upgrade-controller/app/rbac.yaml.j2

@@ -1,4 +1,3 @@
-#% if bootstrap_distribution in ['k3s'] and addon_system_upgrade_controller.enabled %#
 ---
 apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRoleBinding
@@ -12,4 +11,3 @@ subjects:
   - kind: ServiceAccount
     name: system-upgrade
     namespace: tools
-#% endif %#