RFR: 8341532: [testbug] Mark QPathTest as unstable on Linux

[Andy Goryachev]

On Fri, 4 Oct 2024 12:27:06 GMT, Kevin Rushforth <kcr at openjdk.org> wrote:

> Mark `QPathTest` as unstable on Linux until [JDK-8328222](https://bugs.openjdk.org/browse/JDK-8328222) is fixed. Our Jenkins headful test builds fail about 1/2 the time due to this bug.

for me this test was failing all the time.  
thanks!

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Marked as reviewed by angorya (Reviewer).

PR Review: https://git.openjdk.org/jfx/pull/1591#pullrequestreview-2348235485