pr-preview.yml @antora fixed version

Author: hanjianqiao

.github/workflows/merge-build-push.yml

@@ -188,7 +188,7 @@ jobs:
       - name: Install Antora CLI
         run: |
           echo "Installing Antora packages local..."
-          npm install --global antora@3.1.7  @antora/lunr-extension  @antora/pdf-extension  @node-rs/jieba
+          npm install --global antora@3.1.7 @antora/lunr-extension@1.0.0-alpha.11 @antora/pdf-extension@1.0.0-alpha.20 @node-rs/jieba@1.10.3
 
       - name: Build English Documentation
         working-directory: ./ivory-doc-builder