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/storage/volsync/snapshot-controller/helmrelease.yaml.j2

@@ -25,6 +25,11 @@ spec:
       retries: 3
   uninstall:
     keepHistory: false
+  #% if bootstrap_distribution in ['k0s', 'k3s'] and addon_longhorn.enabled %#
+  dependsOn:
+    - name: longhorn
+      namespace: longhorn-system
+  #% endif %#
   values:
     controller:
       #% if bootstrap_distribution in ['k0s', 'k3s'] and addon_longhorn.enabled %#