fix libuhdr build recipe #26

Job	Run time
windows-2019 VS2019	10m 16s
VFX2021 gcc9/C++17 py3.7 exr3.1 ocio2.0	10m 46s
windows-2022 VS2022	9m 37s
macos-12 appleclang13/C++17 py3.11 MacOS-12	16m 55s
VFX2021 clang10/C++17 avx2 exr3.1 ocio2.0	5m 33s
Ubuntu latest releases gcc13 C++20 py3.12 avx2 exr3.3 ocio2.4	10m 28s
macos-13 appleclang14/C++17 py3.11 MacOS-13	28m 16s
VFX2022 gcc9/C++17 py39 exr3.1 ocio2.1	12m 51s
Ubuntu bleeding edge gcc14 C++20 py3.12 OCIO/libtiff/exr-main avx2	39s
macos-14 appleclang15/C++20 py3.12 MacOS-14-ARM	7m 35s
VFX2022 clang13/C++17 py39 avx2 exr3.1 ocio2.1	12m 53s
Ubuntu all local builds gcc12 C++17 avx2 exr3.2 ocio2.3	9m 5s
VFX2022 icc/C++17 py3.9 exr3.1 ocio2.1 qt5.15	5m 24s
Ubuntu clang14 C++20 avx2 exr3.1 ocio2.1	7m 54s
VFX2022 icx/C++17 py3.9 exr3.1 ocio2.2 qt5.15	9m 40s
Ubuntu debug gcc9/C++17, sse4.2, exr3.1	16m 28s
VFX2024 sanitizers	33m 58s
Ubuntu static libs gcc9 C++17 exr2.4	11m 0s
VFX2023 gcc11/C++17 py3.10 exr3.1 ocio2.2	11m 50s
Ubuntu clang-format	3m 5s
VFX2024 gcc11/C++17 py3.11 exr3.2 ocio2.3	8m 37s
VFX2021 oldest gcc9.3/C++17 py3.7 exr-3.1	11m 1s
VFX2021 hobbled gcc9.3/C++17 py3.7 exr-3.1 no-sse	10m 58s
VFX2023 abi check	6m 58s
	4h 31m 47s

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