doc: update broken spkac link

PR-URL: #48063
Reviewed-By: Richard Lau <rlau@redhat.com>
Reviewed-By: Deokjin Kim <deokjin81.kim@gmail.com>
Reviewed-By: Mohammed Keyvanzadeh <mohammadkeyvanzade94@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>

Author: Trott

doc/api/crypto.md

@@ -6012,7 +6012,7 @@ See the [list of SSL OP Flags][] for details.
 [NIST SP 800-132]: https://nvlpubs.nist.gov/nistpubs/Legacy/SP/nistspecialpublication800-132.pdf
 [NIST SP 800-38D]: https://nvlpubs.nist.gov/nistpubs/Legacy/SP/nistspecialpublication800-38d.pdf
 [Nonce-Disrespecting Adversaries]: https://github.com/nonce-disrespect/nonce-disrespect
-[OpenSSL's SPKAC implementation]: https://www.openssl.org/docs/man1.1.0/apps/openssl-spkac.html
+[OpenSSL's SPKAC implementation]: https://www.openssl.org/docs/man3.0/man1/openssl-spkac.html
 [RFC 1421]: https://www.rfc-editor.org/rfc/rfc1421.txt
 [RFC 2409]: https://www.rfc-editor.org/rfc/rfc2409.txt
 [RFC 2818]: https://www.rfc-editor.org/rfc/rfc2818.txt