bump to 9.0.0 and build upstream dockerfile using team package

docker-compose.yml

@@ -17,7 +17,11 @@ volumes:
 
 services:
   mattermost:
-    image: mattermost/mattermost-team-edition:8.1.2
+    image: registry.picasoft.net/mattermost:9.0.0
+    build:
+      context: https://github.com/mattermost/mattermost.git#v9.0.0:server/build
+      args:
+        MM_PACKAGE: https://releases.mattermost.com/9.0.0/mattermost-team-9.0.0-linux-amd64.tar.gz
     container_name: mattermost-app
     security_opt:
       - no-new-privileges:true