build: [#535] allow gomod-go-version-updater action to trigger golang… (

#543)

build: [#535] allow gomod-go-version-updater action to trigger golang action to test whether go version update works on review

.github/workflows/golang.yml

@@ -1,11 +1,11 @@
 ---
 name: golang
 'on':
-  pull_request:
-    types: [labeled]
+  # required by gomod-go-version-updater to trigger this action once pr has
+  # been reviewed
+  pull_request_review:
+    types: [submitted]
   push:
-  # required by gomod-go-version-updater to trigger this action
-  workflow_dispatch:
 jobs:
   mcvs-golang-action:
     runs-on: ubuntu-20.04