Alternative Endpoint for x509.ParsePKIXPublicKey that allows non-fatal errors

[suever]

I have to parse a P-192 public key and although it is not implemented in the upstream x509 package, this repo is able to parse it properly and flags the fact that it is an insecure algorithm as a non-fatal error; however, the ParsePKIXPublicKey function makes these non-fatal errors fatal errors, preventing the parsing of a P-192 key. The comment mentions that this is "for this entrypoint"; however, I don't see another entry point that would allow for more lax parsing of these public keys.

Any ideas on an alternative entrypoint for parsing these keys?