Add MQTT protocol version to docker compose

Author: Teddy-1000

docker-compose.yml

@@ -113,6 +113,7 @@ services:
       - MQTT_PASSWORD=${MQTT_PASSWORD}
       - MQTT_PORT=${MQTT_PORT:-1883}
       - MQTT_TLS=${MQTT_TLS:-False}
+      - MQTT_PROTOCOL_VERSION=${MQTT_PROTOCOL_VERSION}
       - MQTT_TOPIC_PREPEND=${MQTT_TOPIC_PREPEND:-'TEMP_TOPIC'}
       - WIS2_TOPIC=${WIS2_TOPIC:-'TEMP_TOPIC'}
       - WIS2_MQTT_HOST=${MQTT_HOST:-mqtt_wis2}