Moved bundle update after bundle install.

Author: ralph-lange

.github/workflows/ci.yml

@@ -32,9 +32,9 @@ jobs:
     
     - name: Bundle install
       run: |
-        bundle update github-pages
         bundle config path vendor/bundle
         bundle install
+        bundle update github-pages
 
     - name: Test web site changes
       run: ./scripts/cibuild