Update an example test

Author: mdmintz

examples/test_download_files.py

@@ -41,11 +41,7 @@ def test_download_files_from_pypi(self):
             self.browser == "safari"
             or self.browser == "ie"
             or (self.is_chromium() and self.guest_mode and not self.headless)
-            or (
-                self.browser == "chrome"
-                and self.is_chromedriver_too_old()
-                and self.headless
-            )
+            or (self.undetectable and (self.headless or self.headless2))
         ):
             whl_href = self.get_attribute(whl_selector, "href")
             tar_href = self.get_attribute(tar_selector, "href")