Expose the 'collectd' for influxdb

Since I am using the "collectd" plugin for influxdb
the port has to be exposed.

Signed-off-by: Jeremy MAURO <jeremy.mauro@gmail.com>

docker-compose.yaml

@@ -25,6 +25,7 @@ services:
       - speedtest
     ports:
       - "8086:8086"
+      - "25826:25826"
 
 networks:
   speedtest: