NoMethodError undefined method `key?'

Sentry error: https://new-sentry.gitlab.net/organizations/gitlab/issues/675472

NoMethodError: undefined method `key?' for "":String

            return unless options[:include_missing] || passed_params.key?(declared_param)
                                                                    ^^^^^
  from grape (2.0.0) lib/grape/dsl/inside_route.rb:78:in `declared_hash_attr'
  from grape (2.0.0) lib/grape/dsl/inside_route.rb:53:in `block in declared_hash'
  from grape (2.0.0) lib/grape/dsl/inside_route.rb:50:in `each'
  from grape (2.0.0) lib/grape/dsl/inside_route.rb:50:in `each_with_object'
  from grape (2.0.0) lib/grape/dsl/inside_route.rb:50:in `declared_hash'
  from grape (2.0.0) lib/grape/dsl/inside_route.rb:37:in `declared'
  from grape (2.0.0) lib/grape/dsl/inside_route.rb:45:in `block in declared_array'
  from grape (2.0.0) lib/grape/dsl/inside_route.rb:44:in `map'
  from grape (2.0.0) lib/grape/dsl/inside_route.rb:44:in `declared_array'
  from grape (2.0.0) lib/grape/dsl/inside_route.rb:35:in `declared'
  from grape (2.0.0) lib/grape/dsl/inside_route.rb:72:in `block (2 levels) in declared_hash_attr'
  from grape (2.0.0) lib/grape/dsl/inside_route.rb:95:in `handle_passed_param'
  from grape (2.0.0) lib/grape/dsl/inside_route.rb:71:in `block in declared_hash_attr'
  from grape (2.0.0) lib/grape/dsl/inside_route.rb:60:in `each_pair'

Problem

We use type: Array that doesn't verify the elements format. type: Array[JSON] ensures that user provided a list of objects. https://github.com/ruby-grape/grape?tab=readme-ov-file#first-class-json-types