Fix 2.7 deprecation warning in validator_factory (#2121)

Author: Legogris

CHANGELOG.md

@@ -7,6 +7,7 @@
 #### Fixes
 
 * Your contribution here.
+* [#2121](https://github.com/ruby-grape/grape/pull/2121): Fix 2.7 deprecation warning in validator_factory - [@Legogris](https://github.com/Legogris).
 * [#2115](https://github.com/ruby-grape/grape/pull/2115): Fix declared_params regression with multiple allowed types - [@stanhu](https://github.com/stanhu).
 * [#2123](https://github.com/ruby-grape/grape/pull/2123): Fix 2.7 deprecation warning in middleware/stack - [@Legogris](https://github.com/Legogris).
 

lib/grape/validations/validator_factory.rb

@@ -8,7 +8,7 @@ def self.create_validator(**options)
                                       options[:options],
                                       options[:required],
                                       options[:params_scope],
-                                      options[:opts])
+                                      **options[:opts])
       end
     end
   end