This fix makes some minor changes to the internals of the `CertificateBuilder` and `SimpleOCSPServer` test classes. They would break when ML-DSA was selected as key and signing algorithms. Also RSASSA-PSS works better now with these changes. I've also taken this opportunity to do some cleanup on CertificateBuilder and added a method which uses a default signing algorithm based on the key, so the `build()` method no longer needs to provide that algorithm (though one can if they wish for things like RSA signatures if they want a different message digest in the signature).
------------- Commit messages: - 8349759: Fix CertificateBuilder and SimpleOCSPServer test utilities to support PQC algorithms Changes: https://git.openjdk.org/jdk/pull/23566/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=23566&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8349759 Stats: 316 lines in 3 files changed: 269 ins; 13 del; 34 mod Patch: https://git.openjdk.org/jdk/pull/23566.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/23566/head:pull/23566 PR: https://git.openjdk.org/jdk/pull/23566
