Merge pull request #8108 from stefanor/vendored-certifi

Mark certifi as bundled, it's used in the debug command

Author: pradyunsg

news/7fc6ae31-6e5d-4f67-9b6b-3e7d4934d775.trivial

@@ -60,6 +60,7 @@ def vendored(modulename):
     # Actually alias all of our vendored dependencies.
     vendored("appdirs")
     vendored("cachecontrol")
+    vendored("certifi")
     vendored("colorama")
     vendored("contextlib2")
     vendored("distlib")