gitlab update to 8.7.4-bb.1

Package Merge Request

Package Changes

https://repo1.dso.mil/big-bang/product/packages/gitlab/-/blob/8.7.4-bb.1/CHANGELOG.md

Package MR

big-bang/product/packages/gitlab!364 (merged)

For Issue

Closes (big-bang/product/packages/gitlab#297 (closed))

Upgrade Notices

N/A