fix(goreleaser): add go mod tidy before build

AJ Bond · AJ Bond · commit 09f971ce38da · 2019-09-09T10:17:55.000-04:00
diff --git a/.goreleaser.yml b/.goreleaser.yml
@@ -1,4 +1,7 @@
 project_name: kubectl-trace
+before:
+  hooks:
+    - go mod tidy
 builds:
   - id: "kubectl-trace"
     goos:
