[E2E] Adding more wait time to check for upload selector

What does this MR do and why?

Unable to find the css selector upload so adding more wait time to fetch that

• Fix for #422023 (closed) and #415719 (closed)

How to set up and validate locally

run:

bundle exec rspec --tag quarantine ./qa/specs/features/browser_ui/3_create/web_ide/upload_new_file_in_web_ide_spec.rb

MR acceptance checklist

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• I have evaluated the MR acceptance checklist for this MR.