refactor: Call install, configure, and activate methods in loops

- Revised deploy_chatmail() to use all_deployers to call the
  install(), configure(), and activate() methods on all the deployers,
  rather than listing them explicitly in the code.

cmdeploy/src/cmdeploy/__init__.py

@@ -1203,59 +1203,14 @@ def deploy_chatmail(config_path: Path, disable_mail: bool) -> None:
     for deployer in all_deployers:
         deployer.create_users()
 
-    chatmail_deployer.install()
-    turn_deployer.install()
-    unbound_deployer.install()
-    iroh_deployer.install()
-    acmetool_deployer.install()
-    website_deployer.install()
-    chatmail_venv_deployer.install()
-    mtasts_deployer.install()
-    opendkim_deployer.install()
-    dovecot_deployer.install()
-    postfix_deployer.install()
-    nginx_deployer.install()
-    rspamd_deployer.install()
-    fcgiwrap_deployer.install()
-    echobot_deployer.install()
-    journald_deployer.install()
-    mtail_deployer.install()
+    for deployer in all_deployers:
+        deployer.install()
 
-    chatmail_deployer.configure()
-    turn_deployer.configure()
-    unbound_deployer.configure()
-    iroh_deployer.configure()
-    acmetool_deployer.configure()
-    website_deployer.configure()
-    chatmail_venv_deployer.configure()
-    mtasts_deployer.configure()
-    opendkim_deployer.configure()
-    dovecot_deployer.configure()
-    postfix_deployer.configure()
-    nginx_deployer.configure()
-    rspamd_deployer.configure()
-    fcgiwrap_deployer.configure()
-    echobot_deployer.configure()
-    journald_deployer.configure()
-    mtail_deployer.configure()
+    for deployer in all_deployers:
+        deployer.configure()
 
-    chatmail_deployer.activate()
-    turn_deployer.activate()
-    unbound_deployer.activate()
-    iroh_deployer.activate()
-    acmetool_deployer.activate()
-    website_deployer.activate()
-    chatmail_venv_deployer.activate()
-    mtasts_deployer.activate()
-    opendkim_deployer.activate()
-    dovecot_deployer.activate()
-    postfix_deployer.activate()
-    nginx_deployer.activate()
-    rspamd_deployer.activate()
-    fcgiwrap_deployer.activate()
-    echobot_deployer.activate()
-    journald_deployer.activate()
-    mtail_deployer.activate()
+    for deployer in all_deployers:
+        deployer.activate()
 
     files.directory(
         name="Ensure old logs on disk are deleted",