feat: update tests for multi instance

Author: tompsota

test/src/enums/threat_test.dart

@@ -5,7 +5,7 @@ void main() {
   test('Threat enum should contain 14 values', () {
     final threatValuesLength = Threat.values.length;
 
-    expect(threatValuesLength, 16);
+    expect(threatValuesLength, 17);
   });
 
   test('Threat enum should match its values index', () {
@@ -27,6 +27,7 @@ void main() {
     expect(threatValues[13], Threat.adbEnabled);
     expect(threatValues[14], Threat.screenshot);
     expect(threatValues[15], Threat.screenRecording);
+    expect(threatValues[16], Threat.multiInstance);
   });
 
   test(
@@ -49,6 +50,7 @@ void main() {
       expect(ThreatX.fromInt(379769839), Threat.adbEnabled);
       expect(ThreatX.fromInt(705651459), Threat.screenshot);
       expect(ThreatX.fromInt(64690214), Threat.screenRecording);
+      expect(ThreatX.fromInt(859307284), Threat.multiInstance);
     },
   );
 }

test/test_utils/spy_threat_callback.dart

@@ -24,6 +24,7 @@ class SpyThreatListener {
     onScreenshot: () => _log(Threat.screenshot),
     onScreenRecording: () => _log(Threat.screenRecording),
     onObfuscationIssues: () => _log(Threat.obfuscationIssues),
+    onMultiInstance: () => _log(Threat.multiInstance),
   );
 
   static void _log(Threat threat) {
@@ -64,6 +65,8 @@ class SpyThreatListener {
         callback.onScreenshot?.call();
       case Threat.screenRecording:
         callback.onScreenRecording?.call();
+      case Threat.multiInstance:
+        callback.onMultiInstance?.call();
     }
   }
 }