RFR: 7904055: Update jtreg to bundle JUnit 5.13.3

[Christian Stein]

Please review this change to update jtreg to bundle JUnit 5.13.3 - instead of 5.13.2, which has some minor regressions. Find details at: https://docs.junit.org/5.13.3/release-notes/

Checksum `75af1fcbac5f10637d96c07555113b097f2eae4f` copied from here:
- [junit-platform-console-standalone-1.13.3.jar.sha1](https://repo1.maven.org/maven2/org/junit/platform/junit-platform-console-standalone/1.13.3/junit-platform-console-standalone-1.13.3.jar.sha1)

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

Commit messages:
 - 7904055: Update jtreg to bundle JUnit 5.13.3

Changes: https://git.openjdk.org/jtreg/pull/272/files
  Webrev: https://webrevs.openjdk.org/?repo=jtreg&pr=272&range=00
  Issue: https://bugs.openjdk.org/browse/CODETOOLS-7904055
  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jtreg/pull/272.diff
  Fetch: git fetch https://git.openjdk.org/jtreg.git pull/272/head:pull/272

PR: https://git.openjdk.org/jtreg/pull/272