Update ensemble dependency to version v1.2.46 in pubspec.yaml

Author: sharjeelyunus

packages/ensemble_test_runner/pubspec.yaml

@@ -14,7 +14,7 @@ dependencies:
   ensemble:
     git:
       url: https://github.com/EnsembleUI/ensemble.git
-      ref: ensemble-v1.2.43
+      ref: ensemble-v1.2.46
       path: modules/ensemble
   flutter:
     sdk: flutter