Upgrade Synapse (1.42.0 -> 1.43.0)

Related to:

- https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/1287
- https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/1288

.. but does it in a more complete way

roles/matrix-synapse/templates/synapse/homeserver.yaml.j2

@@ -357,6 +357,24 @@ update_user_directory: false
 daemonize: false
 {% endif %}
 
+# Connection settings for the manhole
+#
+manhole_settings:
+  # The username for the manhole. This defaults to 'matrix'.
+  #
+  #username: manhole
+
+  # The password for the manhole. This defaults to 'rabbithole'.
+  #
+  #password: mypassword
+
+  # The private and public SSH key pair used to encrypt the manhole traffic.
+  # If these are left unset, then hardcoded and non-secret keys are used,
+  # which could allow traffic to be intercepted if sent over a public network.
+  #
+  #ssh_priv_key_path: /data/id_rsa
+  #ssh_pub_key_path: /data/id_rsa.pub
+
 # Forward extremities can build up in a room due to networking delays between
 # homeservers. Once this happens in a large room, calculation of the state of
 # that room can become quite expensive. To mitigate this, once the number of
@@ -2258,7 +2276,7 @@ password_config:
       #
       #require_lowercase: true
 
-      # Whether a password must contain at least one lowercase letter.
+      # Whether a password must contain at least one uppercase letter.
       # Defaults to 'false'.
       #
       #require_uppercase: true