Add tooltip text to partial report button

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/175900



Merged-by: Savas Vedova <svedova@gitlab.com>
Approved-by: Veethika Mishra <6115425-veethika@users.noreply.gitlab.com>
Approved-by: Savas Vedova <svedova@gitlab.com>
Reviewed-by: Veethika Mishra <6115425-veethika@users.noreply.gitlab.com>
Co-authored-by: Payton Burdette <pburdette@gitlab.com>