Update auto-update-app-headers.yml

Author: MickLesk

.github/workflows/auto-update-app-headers.yml

@@ -20,7 +20,7 @@ jobs:
     steps:
       - name: Generate a token
         id: generate-token
-        uses: actions/create-github-app-token@v1
+        uses: actions/create-github-app-token@v2
         with:
           app-id: ${{ vars.APP_ID }}
           private-key: ${{ secrets.APP_PRIVATE_KEY }}