Get last commit on push request instead of actor

.github/workflows/generate_docs.yaml

@@ -9,14 +9,14 @@ jobs:
     steps:
       - name: Checkout code
         uses: actions/checkout@v4.1.1
-        if: ${{ github.actor != 'github-actions[bot]' }}
+        if: ${{ github.event.commits[0].author.name != 'github-actions[bot]' }}
         with:
           ssh-key: ${{ secrets.GH_ACTION_KEY }}
           fetch-depth: 2
           ref: ${{ github.head_ref }}
       - name: "actor name"
         run: |
-          echo "${{ github.actor }}"
+          echo "${{ github.event.commits[0].author.name }}"
       - uses: actions/setup-go@v5
         with:
           go-version: '1.21.10'