Fix RSA key attestation

[TheFreeman193]

At present KAD doesn't use an RSA KeyPairGenerator when in RSA mode and the ECDSA key type is hardcoded.

This change removes the key type specialisation from the constructors of the AttestationRepository and AndroidKeyStore classes and moves key type handling into the generateKeyPair() method, which already has the key type byte passed as a parameter.

AndroidKeyStore now initialises both ECDSA and RSA KeyPairGenerator instances at construction and selects the correct one in generateKeyPair() using the keyStoreKeyType parameter.

[VisionR1]

Thanks.

I appreciate it, as always. 🙏🏻

So, except for the action build, i merged your PR, all seems to working.