Update requirements.txt

[relud]

github says we have security vulns in our python deps, but won't say where, so i updated all of them.

[pdehaan]

Should we enable pyup or something to keep the Python deps up to date?

Per https://github.com/mozilla-services/foxsec/blob/master/README.mediawiki#Security_Checklist

• enable security scanning of 3rd-party libraries and dependencies
  • Use npm audit for node.js (see usage in FxA) (NB: there are open issues for handling exceptions)
  • For Python, enable pyup security updates:
    • Add a pyup config to your repo (example config: https://github.com/mozilla-services/antenna/blob/master/.pyup.yml)
    • Enable branch protection for master and other development branches. Make sure the approved-mozilla-pyup-configuration team CANNOT push to those branches.
    • From the "add a team" dropdown for your repo /settings page
      • Add the "Approved Mozilla PyUp Configuration" team for your github org (e.g. for mozilla and mozilla-services)
      • Grant it write permission so it can make pull requests
    • notify secops@mozilla.com to enable the integration in pyup

[relud]

filed #83