urllib3 upgrade

[K.J. Petrie]

Dear friends,

Are there any plans to upgrade urllib3 to version 1.23, as 1.22 now
fails when run from certbot in some circumstances, preventing
certificate renewal? Details of the change can be found at
https://github.com/urllib3/urllib3/pull/1342.

I await news as I have about 10 days to fix the problem on my server
before clients' sites go down.

regards,

K.J. Petrie.