[3.11] bpo-40882: Fix a memory leak in SharedMemory on Windows (GH-20684) #99973
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In multiprocessing.shared_memory.SharedMemory(), the temporary view returned by MapViewOfFile() should be unmapped when it is no longer needed. (cherry picked from commit 85c128e)
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This is a backport to Python 3.11 for bpo-40882: Fix a memory leak in SharedMemory on Windows (#20684)