Remove calconnect-theme checkout from CI workflow

Now using released gem ~> 0.2, no local path dependency needed.

Author: ronaldtse

.github/workflows/build_deploy.yml

@@ -27,12 +27,6 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
 
-      - name: Checkout calconnect-theme
-        uses: actions/checkout@v4
-        with:
-          repository: calconnect/calconnect-theme
-          path: ../calconnect-theme
-
       - name: Setup Node.js
         uses: actions/setup-node@v6
         with: