add go 1.14 to drone.yml

.drone.yml

@@ -34,8 +34,18 @@ steps:
         exclude:
           - tag
 
-  - name: go-test
+  - name: go-build-1.14
     image: golang:1.13
+    commands:
+      - go mod download
+      - CGO_ENABLED=0 go build -ldflags "-w -s" .
+    when:
+      event:
+        exclude:
+          - tag
+
+  - name: go-test
+    image: golang:1.14
     commands:
       - go test -v ./...