git: openjdk/jdk21u: master: 8313167: Update to use jtreg 7.3

[Aleksey Shipilev]

Changeset: f1e8b19f
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2023-09-05 14:21:35 +0000
URL:       https://git.openjdk.org/jdk21u/commit/f1e8b19f8b375a8f6cd48a63bbc0e4341cf1e146

8313167: Update to use jtreg 7.3

Backport-of: 9c6eb67e85e35b3b40c258891789bd3e757a0c17

! 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