fix: encode query params when use schema type

[JohnnyKei]

Problem

When use schema: { type: : string } with openAPI 3, it does not encode.
Then it causes

Failure/Error: raise InvalidURIError, "URI must be ascii only #{uri.dump}"

rspec -format Rswag::Specs::SwaggerFormatter overrides metadata type to schema: { type: :xxx}

rswag/rswag-specs/lib/rswag/specs/swagger_formatter.rb

Lines 158 to 162 in 1058fde

	(operation_nodes + path_nodes + [header_node]).each do |node|
	if node && node[:type] && node[:schema].nil?
	node[:schema] = { type: node[:type] }
	node.delete(:type)
	end

Solution

encode query parameter when using oepnAPI version 3 with schema type.

extends #621

This concerns this parts of the OpenAPI Specification:

• EXAMPLE_LINK TO RELEVANT OPEN API SPECS PAGE
• ANOTHER LINK TO RELEVANT OPEN API SPECS PAGE

The changes I made are compatible with:

• OAS2
• OAS3
• OAS3.1

Related Issues

Links to any related issues.

Checklist

• Added tests
• Changelog updated
• Added documentation to README.md
• Added example of using the enhancement into test-app

Steps to Test or Reproduce

Outline the steps to test or reproduce the PR here.

[JohnnyKei]

CI test failed, so rebased latest master branch.

[melodevbr]

LGTM