Cloned from: https://pagure.io/freeipa/issue/9641

Recently released `cryptography 43.0.0` (https://cryptography.io/en/latest/changelog/#v43-0-0)

> Added Certificate public_key_algorithm_oid and Certificate Signing Request public_key_algorithm_oid to determine the PublicKeyAlgorithmOID Object Identifier of the public key found inside the certificate.

https://cryptography.io/en/latest/x509/reference/#cryptography.x509.Certificate.public_key_algorithm_oid

This caught by pylint:
```
************* Module ipalib.x509
ipalib/x509.py:453: [E0110(abstract-class-instantiated), load_pem_x509_certificate] Abstract class 'IPACertificate' with abstract methods instantiated)
ipalib/x509.py:465: [E0110(abstract-class-instantiated), load_der_x509_certificate] Abstract class 'IPACertificate' with abstract methods instantiated)
```

and by unit tests, for example:
```
______________________ test_x509.test_1_load_base64_cert _______________________

self = <ipatests.test_ipalib.test_x509.test_x509 object at 0x7faee8551520>

    def test_1_load_base64_cert(self):
        """
        Test loading a base64-encoded certificate.
        """
    
        # Load a good cert
>       x509.load_pem_x509_certificate(goodcert_headers)

test_ipalib/test_x509.py:205: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

data = b'-----BEGIN CERTIFICATE-----\nMIICAjCCAWugAwIBAgICBEUwDQYJKoZIhvcNAQEFBQAwKTEnMCUGA1UEAxMeSVBBIFRlc3QgQ2VydGlmaWNhdGU...h6m7TCp0eDgRpo77zNuvd3U4Qpm0Qk+KEjtHQDjNNG6N4ZnCQPmjFPScElvc/GgW7XMbywJy2euF+3/Uip8cnPgSH4=\n-----END CERTIFICATE-----'

    def load_pem_x509_certificate(data):
        """
        Load an X.509 certificate in PEM format.
    
        :returns: a ``IPACertificate`` object.
        :raises: ``ValueError`` if unable to load the certificate.
        """
>       return IPACertificate(
            crypto_x509.load_pem_x509_certificate(data, backend=default_backend())
        )
E       TypeError: Can't instantiate abstract class IPACertificate without an implementation for abstract method 'public_key_algorithm_oid'

../ipalib/x509.py:453: TypeError
```