Use `request_to` matcher without `with` option

[ryz310]

I want to use request_to matcher without with option. But I've occurred following error:

Failure/Error:
       expect { api_request }.not_to request_to(:post, 'https://example.com/api')

     NoMethodError:
       undefined method `[]' for nil:NilClass
     # /usr/local/bundle/ruby/2.7.0/gems/my_api_client-0.17.0/lib/my_api_client/rspec/matchers/request_to.rb:11:in `block (2 levels) in <top (required)>'

The stack trace shows code that:

my_api_client/lib/my_api_client/rspec/matchers/request_to.rb

Lines 8 to 14 in 3266c99

	match do |api_request|
	disable_logging
	@expected = {
	request_line: request_line(expected_method, expected_url, expected_options[:query]),
	body: expected_options[:body],
	headers: expected_options[:headers],
	}.compact