Merge pull request #6793 from sashashura/patch-1

GitHub Workflows security hardening

.github/workflows/stale.yml

@@ -3,8 +3,13 @@ on:
   schedule:
     - cron: "30 0 * * *"
 
+permissions: {}
 jobs:
   close-issues:
+    permissions:
+      issues: write # to close stale issues (actions/stale)
+      pull-requests: write # to close stale PRs (actions/stale)
+
     runs-on: ubuntu-latest
     steps:
       - uses: actions/stale@v3

.github/workflows/submit.yml

@@ -2,6 +2,9 @@ name: "submit"
 on: 
   workflow_dispatch:
 
+permissions:
+  contents: read
+
 jobs:
   build: 
     runs-on: ubuntu-latest

.github/workflows/validate.yml

@@ -3,6 +3,9 @@ on:
   push:
   pull_request:
 
+permissions:
+  contents: read # to fetch code (actions/checkout)
+
 jobs:
   validate:
     name: Validate