add ci security check

.github/workflows/ci.yml

@@ -11,6 +11,8 @@ on:
 jobs:
   build:
     runs-on: ubuntu-latest
+    env:
+      GO111MODULE: on
 
     steps:
       - name: Checkout code
@@ -34,7 +36,11 @@ jobs:
         run: |
           go test ./...
 
+      - name: Run Gosec Security Scanner
+        uses: securego/gosec@master
+        with:
+          args: ./...
+
       - name: Build Docker image
         run: |
           docker build -t rentease .
-