Merge branch '521322-show-skipped-rows-in-csv-email' into 'master'

Show skipped rows in CSV email

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/183449



Merged-by: James Nutt <jnutt@gitlab.com>
Approved-by: Keeyan Nejad <knejad@gitlab.com>
Approved-by: Ashraf Khamis <akhamis@gitlab.com>
Approved-by: James Nutt <jnutt@gitlab.com>
Reviewed-by: Justin Ho Tuan Duong <hduong@gitlab.com>
Reviewed-by: Ashraf Khamis <akhamis@gitlab.com>
Co-authored-by: Oiza <oizabaiye@gmail.com>