git: openjdk/jdk: 8313167: Update to use jtreg 7.3

[Christian Stein]

Changeset: 9c6eb67e
Author:    Christian Stein <cstein at openjdk.org>
Date:      2023-08-07 16:09:23 +0000
URL:       https://git.openjdk.org/jdk/commit/9c6eb67e85e35b3b40c258891789bd3e757a0c17

8313167: Update to use jtreg 7.3

Reviewed-by: jjg, iris

! make/autoconf/lib-tests.m4
! make/conf/github-actions.conf
! make/conf/jib-profiles.js
! test/hotspot/jtreg/TEST.ROOT
! test/jaxp/TEST.ROOT
! test/jdk/TEST.ROOT
! test/langtools/TEST.ROOT
! test/lib-test/TEST.ROOT