Add default permissions (#103134)

sealesj · web-flow · commit c0f2ab5d369f · 2022-05-06T07:34:09.000-07:00
diff --git a/.github/workflows/mirror.yml b/.github/workflows/mirror.yml
@@ -8,6 +8,9 @@ on:
     branches:
       - 'master'
 
+# Declare default permissions as read only.
+permissions: read-all
+
 jobs:
   mirror_job:
     permissions:
