Use published image in docker-compose, publish release by default

docker-compose.yml now pulls git.azuze.fr/kawa/dockmv instead of
building locally. publish.ps1 flips -PublishRelease to on-by-default
(-NoPublishRelease to opt out), since skipping the upload was the
unusual case.

docker-compose.yml

@@ -9,11 +9,7 @@
 
 services:
   dockmv:
-    build:
-      context: .
-      args:
-        VERSION: ${VERSION:-dev}
-    image: dockmv:latest
+    image: git.azuze.fr/kawa/dockmv:${VERSION:-latest}
     container_name: dockmv
     restart: unless-stopped
     ports: