matrix: Update synapse to 1.50.1

roles/matrix/tasks/main.yml

@@ -77,7 +77,7 @@
 - name: install synapse
   pip:
     name:
-      - 'matrix-synapse[postgres,systemd,url_preview,redis,oidc]==1.49.2'
+      - 'matrix-synapse[postgres,systemd,url_preview,redis,oidc]==1.50.1'
     state: latest
     extra_args: '--upgrade-strategy=eager'
     virtualenv: /var/lib/synapse/venv

roles/matrix/templates/homeserver.yaml.j2

@@ -26,7 +26,7 @@
 
 # Server admins can expand Synapse's functionality with external modules.
 #
-# See https://matrix-org.github.io/synapse/latest/modules.html for more
+# See https://matrix-org.github.io/synapse/latest/modules/index.html for more
 # documentation on how to configure or create custom modules for Synapse.
 #
 modules:
@@ -1512,6 +1512,7 @@ room_prejoin_state:
    # - m.room.encryption
    # - m.room.name
    # - m.room.create
+   # - m.room.topic
    #
    # Uncomment the following to disable these defaults (so that only the event
    # types listed in 'additional_event_types' are shared). Defaults to 'false'.