Pass --no-update to mautrix-discord

Possibly fixes https://github.com/spantaleev/matrix-docker-ansible-deploy/issues/2060

roles/matrix-bridge-mautrix-discord/templates/systemd/matrix-mautrix-discord.service.j2

@@ -31,7 +31,7 @@ ExecStart={{ matrix_host_command_docker }} run --rm --name matrix-mautrix-discor
 			{{ arg }} \
 			{% endfor %}
 			{{ matrix_mautrix_discord_docker_image }} \
-			/usr/bin/mautrix-discord -c /config/config.yaml -r /config/registration.yaml
+			/usr/bin/mautrix-discord -c /config/config.yaml -r /config/registration.yaml --no-update
 
 ExecStop=-{{ matrix_host_command_sh }} -c '{{ matrix_host_command_docker }} kill matrix-mautrix-discord 2>/dev/null || true'
 ExecStop=-{{ matrix_host_command_sh }} -c '{{ matrix_host_command_docker }} rm matrix-mautrix-discord 2>/dev/null || true'