matrix: Update mjolnir to v1.4.1

roles/matrix/tasks/main.yml

@@ -105,7 +105,7 @@
   git:
     repo: https://github.com/matrix-org/mjolnir
     dest: /var/lib/synapse/mjolnir
-    version: v1.3.2
+    version: v1.4.1
   become: true
   become_user: synapse
   become_method: sudo

roles/matrix/templates/mjolnir.yaml.j2

@@ -95,6 +95,16 @@ protectedRooms: []
 # Manually add these rooms to the protected rooms list if you want them protected.
 protectAllJoinedRooms: false
 
+# Server administration commands, these commands will only work if Mjolnir is
+# a global server administrator
+admin:
+  # The `make admin` upgrades the powerlevel of a specified user (or the bot itself)
+  # of a room to make them admin of the room (powerlevel 100).
+  #
+  # This only works if the room has at least one admin on the local homeserver
+  # (the homeserver specified in `homeserverUrl` in this file).
+  enableMakeRoomAdminCommand: true
+
 # Misc options for command handling and commands
 commands:
   # If true, Mjolnir will respond to commands like !help and !ban instead of