Tripleo jobs are failing while installing python requirements

Description:-

Tripleo jobs are failing while installing python requirements

https://d28efda77c4dcd7255de-ad135f72b22a132e11a904324fbc4e60.ssl.cf2.rackcdn.com/793383/9/gate/tripleo-ci-centos-8-containers-multinode/520ae4d/job-output.txt

~~~
2021-06-08 10:12:14.761085 | primary | Looking in indexes: https://mirror.kna1.airship-citycloud.opendev.org/pypi/simple, https://mirror.kna1.airship-citycloud.opendev.org/wheel/centos-8-x86_64
2021-06-08 10:12:16.447825 | primary | ERROR: Could not find a version that satisfies the requirement bindep (from versions: none)
2021-06-08 10:12:16.447917 | primary | ERROR: No matching distribution found for bindep
2021-06-08 10:12:16.896693 | primary | ERROR
~~~

https://c31043fcec7fe202f131-02d7225854a8749876eb27aa0438a77f.ssl.cf2.rackcdn.com/795273/2/check/openstack-tox-molecule/6157c0d/job-output.txt
~~~
2021-06-08 10:05:12.084671 | ubuntu-focal | ERROR: Could not find a version that satisfies the requirement tox-bindep>=0.2.1 (from versions: none)
2021-06-08 10:05:12.084678 | ubuntu-focal | ERROR: No matching distribution found for tox-bindep>=0.2.1
2021-06-08 10:05:12.084683 | ubuntu-focal |
2021-06-08 10:05:12.084798 | ubuntu-focal | =================================== log end ====================================
2021-06-08 10:05:12.085158 | ubuntu-focal | ERROR: could not install deps [tox-bindep>=0.2.1, tox >= 3.9.0]; v = InvocationError("/home/zuul/src/opendev.org/openstack/tripleo-quickstart-extras/.tox/.tox/bin/python -m pip install 'tox-bindep>=0.2.1' 'tox >= 3.9.0'", 1)
~~~

Info from Infra team:-

fastly cdn is having a gigantic outage at the moment which is certainly affecting pypi.org