feat: remove the need for raw jinja blocks (#1158)

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

bootstrap/templates/kubernetes/apps/observability/grafana/app/secret.sops.yaml.j2

@@ -1,4 +1,4 @@
-{% if grafana.enabled | default(false) %}
+<% if grafana.enabled | default(false) %>
 ---
 apiVersion: v1
 kind: Secret
@@ -6,5 +6,5 @@ metadata:
   name: grafana-admin-secret
 stringData:
   admin-user: admin
-  admin-password: "{{ grafana.password }}"
-{% endif %}
+  admin-password: "<< grafana.password >>"
+<% endif %>