fix: fix build file bug

.drone.yml

@@ -1,9 +1,14 @@
 kind: pipeline
-name: hello-drone-backup
+type: exec
+name: hello-drone
+
+platform:
+  os: linux
+  arch: amd64
 
 steps:
 - name: build
-  image: golang
   commands:
     - go build
     - go test
+  

go.mod

@@ -0,0 +1,3 @@
+module go.cloudfindtime.com/hello
+
+go 1.16