[jdk23] RFR: 8299487: Test java/net/httpclient/whitebox/SSLTubeTestDriver.java timed out

[Daniel Fuchs]

Clean backport of a small test fix that should avoid some intermittent failures in the CI.

The mainline fix PR can be seen here: PR: https://git.openjdk.org/jdk/pull/19663

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Commit messages:
 - Backport 81083a0e10d9c92f5247ae256e170709014b596b

Changes: https://git.openjdk.org/jdk/pull/19717/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=19717&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8299487
  Stats: 11 lines in 1 file changed: 8 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/19717.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/19717/head:pull/19717

PR: https://git.openjdk.org/jdk/pull/19717