{Packaging} Pin PyJWT to 1.7.1

[jiasli]

Description

Fix #16416: az login --identity fails: load_pem_private_key() missing 1 required positional argument: 'backend'

The error is caused by a conflicting dependency on cryptography from PyJWT 2.0.1

https://github.com/jpadilla/pyjwt/blob/3993ce1d3503b58cf74699a89ba9e5c18ef9b556/setup.cfg#L55

cryptography>=3.3.1,<4.0.0

and Azure CLI

azure-cli/src/azure-cli/setup.py

Line 134 in 6f25505

'cryptography>=2.3.1,<3.0.0',

There is an ongoing PR #15687 to bump cryptography to the latest version.

Also the current MSAL 1.8.0 requires

https://github.com/AzureAD/microsoft-authentication-library-for-python/blob/1.8.0/setup.py#L76

'PyJWT[crypto]>=1.0.0,<2'

Using the old version of pip may cause failure.

MSAL starts to be compatible with PyJWT 2 since AzureAD/microsoft-authentication-library-for-python#296. Waiting for the next release.

[yonzhan]

Packaging