fixed drone ci

.drone.yml

@@ -2,18 +2,17 @@ kind: pipeline
 type: docker
 name: default
 steps:
-- name: build
-  image: golang
-  volumes:
-  - name: deps
-    path: /go
-  commands:
-  - go build
-
-volumes:
-- name: deps
-  temp: {}
-
+  - name: build & publish
+    image: plugins/docker
+    settings:
+      registry: registry.boehm.sh
+      repo: registry.boehm.sh/philipp/steamServer
+      tags: [ "${DRONE_COMMIT_SHA:0:7}","latest" ]
+      username:
+        from_secret: docker_username
+      password:
+        from_secret: docker_password
 trigger:
   branch:
   - master
+