Fix #19294, Ruby NetHttpRequest improvements

ruby/ql/test/library-tests/frameworks/http_clients/NetHttp.rb

@@ -27,3 +27,11 @@ end
 get("example.com", "/").body
 
 Net::HTTP.post(uri, "some_body") # note: response body not accessed
+
+http = Net::HTTP.new("https://example.com")
+root_get = Net::HTTP::Get.new("/")
+http.request(root_get)
+
+Net::HTTP.start("https://example.com") do |http|
+  http.get("/")
+end