Unfortunately I didn't find a way to move this `spec/fixtures/**` exclusion to `.rubocop-cocoapods.yml` because as soon as we give a new value to the `AllCops/Exclude/` YAML key the whole key is overriden (meaning that there is no `concat` between the `AllCops/Exclude/` inherited array and the one here, but just a plain replacement).

Open for ideas on this case.