Add ChatQnA E2E test workflow

[XuehaoSun]

Type of Change

feature or bug fix or documentation or validation or others

Description

detail description

How has this PR been tested?

how to reproduce the test (including hardware information)

Dependency Change?

any library dependency introduced or removed

[XuehaoSun]

@WenjiaoYue please check E2E UI test timeout issue

[WenjiaoYue]

@WenjiaoYue please check E2E UI test timeout issue

The back-end chat response speed needs to be extended. The PR has been modified and submitted.