git: openjdk/loom: fibers: Excluded test.

[duke]

Changeset: 4021c78b
Author:    Leonid Mesnik <leonid.mesnik at gmail.com>
Date:      2023-09-26 11:10:30 +0000
URL:       https://git.openjdk.org/loom/commit/4021c78bfe3c4e9381b585cb3e33d3ba5fb7b1f3

Excluded test.

! test/jdk/ProblemList-Virtual.txt