Update ci with brakeman

Author: johnpaulashenfelter

config/ci.rb

@@ -5,6 +5,7 @@
 
   step "Security: Gem audit", "bin/bundler-audit"
   step "Security: Importmap vulnerability audit", "bin/importmap audit"
+  step "Security: Brakeman code analysis", "bin/brakeman --quiet --no-pager --exit-on-warn --exit-on-error"
 
   step "Tests: Rails", "bin/rails test"
   step "Tests: System", "bin/rails test:system"