[core] remove version from docker

docker-compose.test.yaml

@@ -1,4 +1,3 @@
-version: '3'
 services:
   waha:
     # Check available Docker images:

docker-compose.yaml

@@ -7,7 +7,6 @@
 # https://docs.docker.com/compose/install/
 #
 
-version: '3'
 services:
   waha:
     # Always restart the container on failure