Fix drone pipeline

.drone.yml

@@ -9,16 +9,15 @@ steps:
   - name: debhost
     path: /debian
   commands:
+    - export DEBIAN_FRONTEND=noninteractive
     - apt-get update && apt-get install -y dpkg-dev debhelper
     - dpkg-buildpackage -us -uc
     - cp ../lch_0.6.10.deb .
     - dpkg -i lch_0.6.10.deb
     - lch -v
     - cp lch_0.6.10.deb /debian
-    environment:
-      DEBIAN_FRONTEND: noninteractive
-    
-volumes:
+
+    volumes:
 - name: debhost
   host:
     path: /opt/docker/production/lch-web/web/deb