Do not create scan_js workflow for API-only apps rails#52900

Author: JuzerShakir

railties/lib/rails/generators/rails/app/templates/github/ci.yml.tt

@@ -24,7 +24,7 @@ jobs:
         run: bin/brakeman --no-pager
 
 <% end -%>
-<%- if options[:javascript] == "importmap" -%>
+<%- if options[:javascript] == "importmap"  && !options[:api] -%>
   scan_js:
     runs-on: ubuntu-latest