[devicecheck] Update for xcode 12.5 beta 3 (#10946)

src/devicecheck.cs

@@ -48,8 +48,9 @@ namespace DeviceCheck {
 		void GenerateToken (DCDeviceGenerateTokenCompletionHandler completion);
 	}
 
-	[NoWatch, NoTV, NoMac]
+	[NoWatch, NoTV]
 	[iOS (14,0)]
+	[Mac (11,3)]
 	[DisableDefaultCtor]
 	[BaseType (typeof (NSObject))]
 	interface DCAppAttestService {

tests/xtro-sharpie/macOS-DeviceCheck.todo

@@ -1,6 +0,0 @@
-!missing-selector! +DCAppAttestService::sharedService not bound
-!missing-selector! DCAppAttestService::attestKey:clientDataHash:completionHandler: not bound
-!missing-selector! DCAppAttestService::generateAssertion:clientDataHash:completionHandler: not bound
-!missing-selector! DCAppAttestService::generateKeyWithCompletionHandler: not bound
-!missing-selector! DCAppAttestService::isSupported not bound
-!missing-type! DCAppAttestService not bound