rsa: Skip the synthethic plaintext test with old FIPS provider

rsa: Skip the synthethic plaintext test with old FIPS provider

since the 3.0.0 FIPS provider doesn't implement the Bleichenbacher
workaround, the decryption fails instead of providing a synthetic
plaintext, so skip them then

Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com>
Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/13817)