Rename all `Enum.None` to `Enum.None_` (#1185) #2197

Job	Run time
bindings	17m 23s
build (clang-sanitize, ubuntu-latest)	51m 56s
linux-coverage	23m 44s
build (gcc-release, ubuntu-latest)	16m 44s
conan	8m 27s
build (gcc-11-release, ubuntu-latest)	13m 44s
build (gcc-debug-shared, ubuntu-latest)	13m 58s
build (gcc-debug-noexcept, ubuntu-latest)	12m 59s
build (macos-release, macos-latest)	5m 14s
build (win64-release, windows-latest)	13m 26s
build (win64-debug-shared, windows-latest)	10m 42s
build (win64-debug-noexcept, windows-latest)	9m 4s
	3h 17m 21s

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