fix(e2e): flame_game_test should expect 100% coverage

[alestiago]

Description The flame_game_test end-to-end test expects coverage of less than 100%, it should expect 100%.

Steps To Reproduce

See the flame_game_test.dart Dart file: https://github.com/VeryGoodOpenSource/very_good_cli/blob/b4ec78ef09d37ac88fdbc6c53fd9a4512f6c9126/e2e/test/commands/create/flame_game/flame_game_test.dart#L57

Expected Behavior The test coverage expectation should be 100%.