capabilities=0 handling of `decode_rsa_private_key` and `decode_rsa_public_key`

[dirkmueller]

ecf10f7#diff-27d7cedf0391474af4c3d8f14bb489e6717659d58a64c6aae608647e0b2388dbR32

(see

python-pkcs11/pkcs11/util/rsa.py

Line 32 in ecf10f7

caps: MechanismFlag | int = capabilities or DEFAULT_KEY_CAPABILITIES[KeyType.RSA]

)

the typing addition here actually changed the behavior, previous default capabilities were only used when capabilities is None.

suggest to change this back to

   caps: MechanismFlag | int = DEFAULT_KEY_CAPABILITIES[KeyType.RSA] if capabilities is None else capabilities