[jdk23u] RFR: 8340899: Remove wildcard bound in PositionWindows.positionTestWindows

[Alexey Ivanov]

This pull request contains a backport of commit [e2626db2](https://github.com/openjdk/jdk/commit/e2626db2f00d0cc9f3ff8ea374a1ccc89373e398) from the [openjdk/jdk](https://git.openjdk.org/jdk) repository.

The commit being backported was authored by Alexey Ivanov on 26 Sep 2024 and was reviewed by Alexander Zvegintsev and Phil Race.

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Commit messages:
 - Backport e2626db2f00d0cc9f3ff8ea374a1ccc89373e398

Changes: https://git.openjdk.org/jdk23u/pull/170/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk23u&pr=170&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8340899
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk23u/pull/170.diff
  Fetch: git fetch https://git.openjdk.org/jdk23u.git pull/170/head:pull/170

PR: https://git.openjdk.org/jdk23u/pull/170