caddy: make firewalld optional

roles/caddy/defaults/main.yaml

@@ -0,0 +1,2 @@
+---
+caddy_use_firewalld: true

roles/caddy/meta/argument_specs.yaml

@@ -7,3 +7,8 @@ argument_specs:
         description: Email address used for ssl certs
         type: str
         required: true
+      caddy_use_firewalld:
+        description: Whether to open ports using firewalld
+        type: bool
+        required: false
+        default: true

roles/caddy/meta/main.yaml

@@ -8,3 +8,4 @@ dependencies:
         - name: ubuntu
           version_min: 22
   - role: uumas.general.firewalld
+    when: caddy_use_firewalld

roles/caddy/tasks/main.yaml

@@ -52,3 +52,4 @@
     - http
     - https
     - http3
+  when: caddy_use_firewalld