Remove obsolete version

LeGmask · web-flow · commit f66844b6084b · 2024-06-19T21:11:18.000+02:00
Version top-level element is obsolete and trigger a warning
diff --git a/docker-compose.yml b/docker-compose.yml
@@ -1,5 +1,3 @@
-version: '3'
-
 services:
   glouton:
     image: bleemeo/bleemeo-agent
