crypto: clear openssl error stack after en/decrypt

The publicEncrypt/privateDecrypt/etc. family of functions didn't clear
OpenSSL's error stack on early return.

Notably, trying to use an encrypted key with the wrong passphrase left
an error on the stack that made subsequent encrypt or decrypt operations
fail, even with an unencrypted key.

Fixes: https://github.com/nodejs/node/issues/32240

PR-URL: https://github.com/nodejs/node/pull/32248


Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>