chore: pin workflow actions + tighten permissions

.github/workflows/auto-response.yml

@@ -6,21 +6,22 @@ on:
   pull_request_target:
     types: [labeled]
 
-permissions:
-  issues: write
-  pull-requests: write
+permissions: {}
 
 jobs:
   auto-response:
+    permissions:
+      issues: write
+      pull-requests: write
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/create-github-app-token@v1
+      - uses: actions/create-github-app-token@d72941d797fd3113feb6b93fd0dec494b13a2547 # v1
         id: app-token
         with:
           app-id: "2729701"
           private-key: ${{ secrets.GH_APP_PRIVATE_KEY }}
       - name: Handle labeled items
-        uses: actions/github-script@v7
+        uses: actions/github-script@f28e40c7f34bde8b3046d885e986cb6290c5673b # v7
         with:
           github-token: ${{ steps.app-token.outputs.token }}
           script: |