Update validate.yml

Author: sashashura

.github/workflows/validate.yml

@@ -13,12 +13,13 @@ on:
       - '!all-contributors/**'
   pull_request: {}
 
-permissions:
-  actions: write #  to cancel/stop running workflows (styfle/cancel-workflow-action)
-  contents: read #  to fetch code (actions/checkout)
+permissions: {}
 
 jobs:
   main:
+    permissions:
+      actions: write #  to cancel/stop running workflows (styfle/cancel-workflow-action)
+      contents: read #  to fetch code (actions/checkout)
     # ignore all-contributors PRs
     if: ${{ !contains(github.head_ref, 'all-contributors') }}
     strategy: