UsersICanSeeQueryTests tests are failing on staging due to incorrect email address

[hahn-kev]

Describe the bug
the current tests assume that there is a user with the email [email protected] but that's not the case on staging as it's overridden to be an email for our test team, that address is private so should not be written into the test, we probably don't want to use it anyway since otherwise they would get spammed with emails for these tests.

To Reproduce
run these tests against the staging server, see results here https://github.com/sillsdev/languageforge-lexbox/runs/34114577637

[hahn-kev]

turns out this is blocking our flaky tests from running so I've made this a higher priority