Fix workflow: add fetch-depth, git config, and move GITHUB_TOKEN

Author: sun

.github/workflows/deploy-docs.yml

@@ -8,10 +8,10 @@ permissions:
 jobs:
   deploy:
     runs-on: ubuntu-latest
-    env:
-      GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
     steps:
       - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
       - name: Set up Python
         uses: actions/setup-python@v5
         with:
@@ -21,4 +21,8 @@ jobs:
           pip install mkdocs-material
       - name: Build and Deploy
         run: |
+          git config --global user.name "github-actions[bot]"
+          git config --global user.email "github-actions[bot]@users.noreply.github.com"
           mkdocs gh-pages --force
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}