Bump dependencies (#23)

Will close #22

Author: jt274

pubspec.yaml

@@ -16,9 +16,9 @@ dependencies:
     sdk: flutter
   flutter_test:
     sdk: flutter
-  firebase_database: ^11.2.0
-  mockito: ^5.4.4
-  firebase_core_platform_interface: ^5.3.1
+  firebase_database: ^11.3.9
+  mockito: ^5.4.6
+  firebase_core_platform_interface: ^6.0.0
 
 dev_dependencies:
-  flutter_lints: ^5.0.0
+  flutter_lints: ^6.0.0