usdImagingGL: Disable failing test from change 2351369 #15

Job	Run time
macOS (3.8, python3.8, cp38)	1m 55s
Linux (cp38, /opt/python/cp38-cp38/bin/python, 3.8)	25m 49s
macOS (3.9, python3.9, cp39)	1m 37s
Windows (3.8, cp38)	28m 53s
Linux (cp39, /opt/python/cp39-cp39/bin/python, 3.9)	25m 58s
Windows (3.9, cp39)	29m 9s
macOS (3.10, python3.10, cp310)	1m 42s
Linux (cp310, /opt/python/cp310-cp310/bin/python, 3.10)	25m 51s
macOS (3.11, python3.11, cp311)	1m 35s
Windows (3.10, cp310)	27m 15s
Linux (cp311, /opt/python/cp311-cp311/bin/python, 3.11)	26m 14s
macOS (3.12, python3.12, cp312)	1m 53s
Windows (3.11, cp311)	27m 19s
Linux (cp312, /opt/python/cp312-cp312/bin/python, 3.12)	25m 49s
Windows (3.12, cp312)	27m 47s
CollectPackages	10s
Test	0s
	4h 38m 56s

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