git: openjdk/jdk: 8289798: Update to use jtreg 7

[Jonathan Gibbons]

Changeset: 1ee59adc
Author:    Christian Stein <cstein at openjdk.org>
Committer: Jonathan Gibbons <jjg at openjdk.org>
Date:      2022-09-07 15:13:35 +0000
URL:       https://git.openjdk.org/jdk/commit/1ee59adcfead2128316556121c1711d308c7ea01

8289798: Update to use jtreg 7

Reviewed-by: ihse, jpai

! 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