RFR: 8296618: Skip failing test SwingNodeDnDMemoryLeakTest until JDK-8285503 is fixed

[pandaapo]

On Wed, 9 Nov 2022 13:56:41 GMT, Kevin Rushforth <kcr at openjdk.org> wrote:

> Thank you for your offer to contribute. It might be somewhat premature, since we are still looking into whether the test can be fixed soon (in which case we would not want to skip it). See [JDK-8285503](https://bugs.openjdk.org/browse/JDK-8285503). We can leave this PR open until we know one way or the other.

Thank you for your comment. I misunderstood the reporter's intention. I thought this should be fixed now when I found this issue in the JBS.

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PR: https://git.openjdk.org/jfx/pull/942