RFR: 8340321: Disable SHA-1 in TLS/DTLS 1.2 handshake signatures [v2]

[Artur Barashev]

> Disable SHA-1 in TLS/DTLS 1.2 handshake signatures (but not in certificate signatures).
> https://www.rfc-editor.org/rfc/rfc9155.html

Artur Barashev has updated the pull request incrementally with one additional commit since the last revision:

  Add TLSv1.3 unit test

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/24367/files
  - new: https://git.openjdk.org/jdk/pull/24367/files/b45f6651..efe2b96b

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=24367&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=24367&range=00-01

  Stats: 86 lines in 3 files changed: 74 ins; 9 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/24367.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24367/head:pull/24367

PR: https://git.openjdk.org/jdk/pull/24367