⬆️ Upgrade Docker Compose version to 3.4

tiangolo · solidnerd · commit d4df3f312bde · 2020-05-30T06:36:39.000+02:00
diff --git a/docker-compose.swarm.yml b/docker-compose.swarm.yml
@@ -1,4 +1,4 @@
-version: '3.3'
+version: '3.4'
 services:
   redis:
     image: redis:5.0.9
