Relax float compareExact for NaN payload differences in compression t… #1744

Job	Run time
macOS.10: gcc c++20 / steps	5m 16s
macOS.5: pkgconfig=OFF, examples=OFF, tools=OFF, docs=OFF, internal imath+deflate / steps	3m 12s
macOS.8: universal2 / steps	10m 16s
macOS.1: Release / steps	12m 33s
macOS.7: macos-14 / steps	9m 56s
macOS.2: Debug / steps	22m 0s
macOS.4: threads=OFF / steps	9m 3s
macOS.3: static / steps	11m 16s
macOS.9: clang c++20 / steps	5m 43s
Windows.8: msys2-mingw32, static / steps	19m 28s
Windows.11: c++20 / steps	5m 45s
Windows.2: Debug / steps	36m 21s
macOS.6: macos-15-intel / steps	29m 3s
Windows.5: pkgconfig=OFF, examples=OFF, tools=OFF, docs=OFF, internal imath+deflate / steps	3m 10s
Windows.1: Release / steps	17m 32s
Windows.6: vfx2023 / steps	16m 25s
Windows.3: static / steps	16m 53s
Windows.9: msys2-ucrt64 / steps	16m 7s
Windows.7: msys2-mingw32 / steps	19m 29s
Linux.2: Debug / steps	7m 7s
Windows.4: threads=OFF / steps	16m 22s
Linux.9: cmake 4 / steps	18m 17s
Windows.10: msys2-ucrt64, static / steps	11m 38s
Linux.10: clang c++20 / steps	12m 41s
Linux.4: threads=OFF / steps	8m 2s
Linux.5: pkgconfig=OFF, examples=OFF, tools=OFF, docs=OFF, internal deflate / steps	6m 13s
Linux.11: gcc c++20 / steps	9m 8s
Linux.8: vfx2023 / steps	8m 57s
Linux.6: custom namespace / steps	8m 15s
Linux.12: Fedora Rawhide / steps	17m 42s
Linux.1: Release / steps	8m 36s
Linux.3: static / steps	8m 43s
Linux.7: clang / steps	11m 36s
	7h 2m 45s

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