hidapi/mac: import mainstream commit c1b9d2ad https://github.com/libusb/hidapi/commit/c1b9d2ad985c826f7916aa793d4728885a43a0f4 Properly handle the close of run loop on macOS (https://github.com/libusb/hidapi/pull/522) - as per documentation `kCFRunLoopRunStopped` should be handled once the runloop is closed via `CFRunLoopStop`; - if it is not handled - a race condition/crash may happen on the latest macOS when a device gets disconnected while being open; (cherry picked from commit 62d1a2c836c6176a6c76d54229eafa7d011bb9fb)