Resolve intermittent failure occurring when adding sandbox namespace
Description
It appears that we have an intermittent failure related to creating a sandbox namespace.
GitLab QA sometimes attempts to create the sandbox namespace, even though it already exists, so we are getting uniqueness validations errors in the form.
I suspect that we are using page.has_content?
or similar Capybara matcher that does not wait long enough on groups list page.
/cc @rymai @rspeicher
Edited by Grzegorz Bizon