Merge remote-tracking branch 'origin/v2' into v2

Author: cjc1108

.github/workflows/compile-and-deploy.yml

@@ -19,7 +19,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v3
         with:
-          python-version: '3.x'
+          python-version: '3.9.13'
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
@@ -80,4 +80,4 @@ jobs:
             rm -rf /opt/maxkb/docs/*
             mv /tmp/docs/* /opt/maxkb/docs/
             /opt/nginx/bin/reload-nginx.sh
-            rm -rf /tmp/docs*
+            rm -rf /tmp/docs*