AWS Crypto Tools maintains test/upstream-requirements-py<VERSION>.txt in our Python products such that
our Cryptographic Primitive Provider for Python (pyca/cryptography)
may execute downstream tests against AWS Crypto Tools Python products.
These files allow pyca to install and test the Crypto Tools products.
Additionally, Crypto Tools should maintain a test configuration that can be completed without using any AWS resources.
If Crypto Tools needs to contact pyca about this expectation,
they should cut a issue to the pyca/cryptography repo.