Ignore `javascripts/vue_shared` from ee-files-location-check job

Summary

Frontend code present in app/assets/javascripts/vue_shared is shared re-usable code which is to be available in both CE and EE and hence it cannot be put within ee/ sub-directory unless the situation is very specific where putting such shared code in main vue_shared directory doesn't make sense (for eg; code responsible for an EE-only feature).

Proposal

A viable solution is to ignore both app/assets/javascripts/vue_shared & ee/app/assets/javascripts/vue_shared directories for ee-files-location-check job as CE and EE separation there cannot be determined via automation.