tap missing pump params pass through

[vasilich6107]

while using tap there is automatic pump call
Future pump([Duration? duration, EnginePhase newPhase = EnginePhase.sendSemanticsUpdate])

there is no ability to pass duration trhough this is why modal dialog is not rendered on screenshots

[vasilich6107]

adding await tester.pump(const Duration(milliseconds: 500)); after tap solves the issue
but it would be better to have an ability to pass param