Fix build when nlohmann is not detected (reported by cdash ci on wind… #2300

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openjdk 23.0.1 is already installed and up-to-date. To reinstall 23.0.1, run: brew reinstall openjdk

ant 1.10.15 is already installed and up-to-date. To reinstall 1.10.15, run: brew reinstall ant

libpng 1.6.44 is already installed and up-to-date. To reinstall 1.6.44, run: brew reinstall libpng

jpeg-turbo 3.0.4 is already installed and up-to-date. To reinstall 3.0.4, run: brew reinstall jpeg-turbo

pkgconf 2.3.0_1 is already installed and up-to-date. To reinstall 2.3.0_1, run: brew reinstall pkgconf