go.dev: fix cloudbuild.yaml

The golden tests fail if you update _content/events.yaml
before you run the tests. Don't do that.

Change-Id: Ia7b8b4c05169e26b1341a0e70ef5b1c88aa52cb4
Reviewed-on: https://go-review.googlesource.com/c/website/+/324770
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
diff --git a/go.dev/cloudbuild.yaml b/go.dev/cloudbuild.yaml
index 7228b53..2d92918 100644
--- a/go.dev/cloudbuild.yaml
+++ b/go.dev/cloudbuild.yaml
@@ -4,11 +4,11 @@
 
 steps:
   - name: 'mirror.gcr.io/library/golang'
-    entrypoint: bash
-    args: ["-c", "go run ./cmd/events/ > ./_content/events.yaml"]
+    args: ["go", "test", "./..."]
     dir: go.dev
   - name: 'mirror.gcr.io/library/golang'
-    args: ["go", "test", "./..."]
+    entrypoint: bash
+    args: ["-c", "go run ./cmd/events/ > ./_content/events.yaml"]
     dir: go.dev
   - name: "gcr.io/cloud-builders/gcloud"
     entrypoint: bash