fix: tool parameter mapping for responses (#704)

Author: ms-jpq

lib/openai/resources/chat/completions.rb

@@ -140,7 +140,6 @@ def create(params)
                 name = func[:name] ||= params.name.split("::").last
                 tool_models.store(name, params)
                 func.update(parameters: params.to_json_schema)
-
                 tool
               else
                 tool

lib/openai/resources/responses.rb

@@ -117,7 +117,9 @@ def create(params)
               name = func[:name] ||= params.name.split("::").last
               tool_models.store(name, params)
               func.update(parameters: params.to_json_schema)
+              tool
             else
+              tool
             end
           end
           tools.replace(mapped)