migrate from URI.encode to CGI::escape to become ruby 3 ready

Author: stevereinke

lib/woocommerce_api.rb

@@ -97,7 +97,7 @@ def add_query_params endpoint, data
 
       endpoint += "?" unless endpoint.include? "?"
       endpoint += "&" unless endpoint.end_with? "?"
-      endpoint + URI.encode(flatten_hash(data).join("&"))
+      endpoint + CGI::escape(flatten_hash(data).join("&"))
     end
 
     # Internal: Get URL for requests

lib/woocommerce_api/oauth.rb

@@ -42,7 +42,7 @@ def get_oauth_url
       params["oauth_timestamp"] = Time.new.to_i
       params["oauth_signature"] = CGI::escape(generate_oauth_signature(params, url))
 
-      query_string = URI::encode(params.map{|key, value| "#{key}=#{value}"}.join("&"))
+      query_string = CGI::escape(params.map{|key, value| "#{key}=#{value}"}.join("&"))
 
       "#{url}?#{query_string}"
     end

test/test.rb

@@ -155,7 +155,7 @@ def test_oauth_put
 
   def test_adding_query_params
     url = @oauth.send(:add_query_params, 'foo.com', filter: { sku: '123' }, order: 'created_at')
-    assert_equal url, URI.encode('foo.com?filter[sku]=123&order=created_at')
+    assert_equal url, CGI::escape('foo.com?filter[sku]=123&order=created_at')
   end
 
   def test_invalid_signature_method