Fixed the issue related to Cucumber Test Suite in browser.end

[shivansh-bhatnagar18]

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• [ ] Always add unit tests - PRs without tests are most of the times ignored. Fixes Issue Number #3332

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[garg3133]

@shivansh-bhatnagar18 What are you trying to achieve here?

[shivansh-bhatnagar18]

@garg3133 The Issue was related to the code snippet ending the test suite before while the Nightwatch still tries to close the session which results in an error. One possible solution was mentioned in the issue #3332, So I implemented that.

[garg3133]

Fixed in #4209. Thanks for the PR!