macOS

Add missing DURING_GC_COULD_MALLOC_REGION macros #8085

Job	Run time
make (check, macos-14)	5m 45s
make (check, macos-14, --with-gcc=gcc-14)	7m 32s
make (check, macos-14, --with-jemalloc --with-opt-dir=$(brew --prefix jemalloc))	5m 47s
make (check, macos-14, --with-gmp)	5m 41s
make (test-all, --repeat-count=2, macos-14)	7m 20s
make (test-bundler-parallel, macos-14)	17m 3s
make (test-bundled-gems, macos-14)	8m 51s
make (check, macos-15)	6m 21s
make (check, macos-13)	9m 2s
macOS result	1s
	1h 13m 23s

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