Fix warning

Author: LibretroAdmin

ui/drivers/cocoa/cocoa_common.h

@@ -115,7 +115,7 @@ void get_ios_version(int *major, int *minor);
 #endif
 
 #if __MAC_OS_X_VERSION_MAX_ALLOWED >= 140000
-@property(nonatomic,readwrite) CADisplayLink *displayLink API_AVAILABLE(macos(14.0));
+@property(nonatomic,readwrite,retain) CADisplayLink *displayLink API_AVAILABLE(macos(14.0));
 #endif
 
 @end