Consider cryptography 42.x.x new validation

[amolinaalvarez]

In cryptography 42.x.x, this library introduces a new parsing validation that raises a ValueError when load_pem_public_key is called with an invalid PEM. This affects the JWS decode function, as PyJWT does not currently handle this exception. Does it make sense to address this scenario?

PyJWT unmanaged exception point:

pyjwt/jwt/algorithms.py

Line 346 in 1242020

return cast(RSAPublicKey, load_pem_public_key(key_bytes))

cryptography new validation: https://github.com/pyca/cryptography/blob/b507701ab4c14c345fd036c20ec7b95dae78c1a4/src/rust/src/error.rs#L12

Thank you.

[codespearhead]

Of course! Can you make a PR?

[CollinEMac]

Hi 👋

I opened a PR that I think would handle this case.

#952