matrix: Increase pantalaimon start sleep to 30 seconds

Now that Pantalaimon refuses operations until it has sync'ed with the
homeserver, we need to give it time to do so or Mjolnir will refuse to
start.

roles/matrix/files/pantalaimon.service

@@ -9,7 +9,7 @@ WorkingDirectory=~
 ExecStart=/var/lib/synapse/venv-pantalaimon/bin/pantalaimon \
   -c /etc/synapse/pantalaimon.conf \
   --data-path /var/lib/synapse/pantalaimon-data
-ExecStartPost=/usr/bin/sleep 3
+ExecStartPost=/usr/bin/sleep 30
 
 [Install]
 WantedBy=multi-user.target