more fapi-ciba tests not sending client authentcation
Similar to #867 (closed) there are two more tests that have the same issue of not sending private_key_jwt client authentication:
fapi-ciba-id1-ensure-request-object-signature-algorithm-is-bad-fails
fapi-ciba-id1-ensure-request-object-signed-by-other-client-fails
See: https://www.certification.openid.net/plan-detail.html?plan=R3sICwc4v1jsm
(Report from Rob Otto at ping.)