RFR: 8353738: Update TLS unit tests to not use certificates with MD5 signatures [v5]

[Artur Barashev]

On Fri, 31 Oct 2025 15:02:42 GMT, Matthew Donovan <mdonovan at openjdk.org> wrote:

>> This PR updates tests that were using MD5 certificates. For most of the tests, I added test cases for TLSv1.2/MD5withRSA and TLSv1.3/SHA256withRSA.
>
> Matthew Donovan has updated the pull request incrementally with one additional commit since the last revision:
> 
>   changed line wrapping

LGTM

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Marked as reviewed by abarashev (Committer).

PR Review: https://git.openjdk.org/jdk/pull/27342#pullrequestreview-3405000667