Cryptography dependency is missing in 0.2.7

[JuR-0]

You removed cryptography from requirements but it's necessary to decode RS256 tokens.
PyJWT doesn't include cryptography lib in its requirements:
https://pyjwt.readthedocs.io/en/stable/installation.html#cryptographic-dependencies-optional

[schang1146]

Hitting the same issue when trying to decode a RS256 JWT. We've found a workaround to manually specify pyjwt[crypto] as a dependency but rather avoid having to pin and remember to update both at the same time.