Update Capybara wait time

What does this MR do and why?

Related #375190 and &8729 (comment 1110153572)

Describe in detail what your merge request does and why.

Update Capybara wait time

We can set up [set up the individual timeout per testt if needed.](https://gitlab.com/gitlab-org/gitlab/-/blob/master/spec/support/helpers/wait_helpers.rb#L7) if needed.

Screenshots or screen recordings

Screenshots are required for UI changes, and strongly recommended for all other merge requests.

How to set up and validate locally

Numbered steps to set up and validate the change are strongly suggested.

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

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