Fix SOURCE in Dockerfile.deploy

Dockerfile.deploy

@@ -66,5 +66,5 @@ RUN rm -f settings_local.py
 
 RUN GITREF=$(git rev-parse HEAD)                        \
     GITTAG=$(git name-rev --tags --name-only $GITREF)   \
-    SOURCE='https://github.com/mozilla/addons'          \
+    SOURCE='https://github.com/mozilla/addons-server'   \
     && echo "{'source': '$SOURCE', 'version': '$GITTAG', 'commit': '$GITREF'}" > version.json