Fix script for GH Pages deployment

Author: syimyuzya

.github/workflows/static.yml

@@ -35,7 +35,7 @@ jobs:
         uses: actions/configure-pages@v5
       - name: Use production version of the framework
         run: |
-          num="$(perl -i -ple '$k+= s|(\Qhttps://cdn.jsdelivr.net/npm/vue@3/dist/vue.esm-browser\E)\.js|$1.prod.js|g; END{print $k}' site/beta.html)"
+          num="$(perl -i -ple '$k+=s|(https://cdn\.jsdelivr\.net/npm/vue\@3/dist/vue\.esm-browser)\.js|$1.prod.js|g; END{print $k}' site/beta.html)"
           if [[ "$num" != 1 ]]; then
             echo "expect 1 match, got $num matches"
             exit 1