chore(deps): update dependency yaru_test to ^0.3.0

Author: renovate[bot]

packages/ubuntu_test/pubspec.yaml

@@ -20,7 +20,7 @@ dependencies:
   matcher: ^0.12.16+1
   mockito: ^5.4.4
   ubuntu_localizations: ^0.5.1
-  yaru_test: ^0.2.0
+  yaru_test: ^0.3.0
 
 dev_dependencies:
   ubuntu_lints: ^0.4.1

packages/ubuntu_widgets/pubspec.yaml

@@ -24,4 +24,4 @@ dev_dependencies:
   flutter_test:
     sdk: flutter
   ubuntu_lints: ^0.4.1
-  yaru_test: ^0.2.0
+  yaru_test: ^0.3.0