[jfx-tests] RFR: 8316116: Ignore a single failing test case from Effects2Test

[Andy Goryachev]

On Tue, 12 Sep 2023 14:38:12 GMT, Ajit Ghaisas <aghaisas at openjdk.org> wrote:

> test/scenegraph/functional/graphics/Effects2Test.java has a total of 123 test cases. Out of which 122 test cases pass and 1 test case (Lightningspotlight) fails consistently. Right now, the root cause of this test failure is unknown.
> 
> This PR marks this test case with `@Ignore`. It will be fixed in future under [JDK-8316117](https://bugs.openjdk.org/browse/JDK-8316117).

Marked as reviewed by angorya (Reviewer).

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PR Review: https://git.openjdk.org/jfx-tests/pull/10#pullrequestreview-1622442135