Update CesiumNativeTests/src/checkFilesEqual.cpp #6053

Job	Run time
Quick Checks	18s
Emscripten v3.1.39 32bit memory	24m 46s
Documentation	1m 58s
windows-2022 / RelWithDebInfo	17m 42s
Linting	15m 13s
Emscripten v4.0.13 32bit memory	14m 20s
ubuntu-22.04 / clang / Debug	10m 32s
macos-14 / clang / RelWithDebInfo	59m 30s
Emscripten v4.0.13 64bit memory	14m 45s
ubuntu-24.04 / gcc / Debug	10m 48s
ubuntu-24.04 / gcc / RelWithDebInfo	19m 26s
macos-14 / clang / Debug	1h 55m 2s
ubuntu-22.04 / clang / RelWithDebInfo	15m 55s
windows-2022 / Debug	11m 20s
	5h 31m 35s

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