www/py-pyjwt: Updtae to 1.7.1

Changes this release:

https://github.com/jpadilla/pyjwt/blob/1.7.1/CHANGELOG.md

PR: 242818
Submitted by: Goran Mekić <meka@tilda.center>
Approved by: Terje Elde <terje@elde.net> (maintainer timeout)