fix a test

Author: thykel

spec/features/work_packages/table/semantic_id_navigation_follow_ups_spec.rb

@@ -12,7 +12,7 @@
   # bugs manifest.
 
   let(:admin) { create(:admin) }
-  let(:project) { create(:project, identifier: "NAVFOLLOW") }
+  let(:project) { create(:project, identifier: "navfollow") }
 
   let(:work_package) { create(:work_package, project:, subject: "First WP") }
   let(:other_wp)     { create(:work_package, project:, subject: "Other WP") }