Fix missing drone test on release/* (#3126)

* fix missing drone test on release/*

* remove test coverage on release/*

Author: lunny

.drone.yml

@@ -86,6 +86,19 @@ pipeline:
       event: [ push, pull_request ]
       branch: [ master ]
 
+  test:
+    image: webhippie/golang:edge
+    pull: true
+    group: test
+    environment:
+      TAGS: bindata sqlite
+      GOPATH: /srv/app
+    commands:
+      - make test
+    when:
+      event: [ push, pull_request ]
+      branch: [ release/* ]
+
   test:
     image: webhippie/golang:edge
     pull: true