fix(workflow): detected dubious ownership in repository

Author: duanhongyi

.drone/drone.yml

@@ -5,8 +5,9 @@ name: default
 steps:
 - name: build-docs
   commands:
-  - make docker-build docker-build-docs 
+  - make docker-build docker-build-docs
   - cp _scripts/* _build/html
+  - git config --global --add safe.directory _build/html
   - cd _build/html && echo "drycc.cc" > CNAME  && echo "www.drycc.cc" >> CNAME && git init
   environment:
     SSH_DEPLOY_KEY: