gitlab update to 8.7.4-bb.0

Package Merge Request

Package Changes

https://repo1.dso.mil/big-bang/product/packages/gitlab/-/blob/8.7.4-bb.0/CHANGELOG.md

Package MR

big-bang/product/packages/gitlab!362 (merged)

For Issue

Closes big-bang/product/packages/gitlab#304 (closed)

Upgrade Notices

N/A

tests/test-values.yaml

@@ -1528,7 +1528,7 @@ addons:
             size: 256Mi
       bbtests:
         # TODO: turn these back on once we get 2.39.0 out the door, provided we've managed to fix or remove the failing gitlab script tests
-        enabled: false
+        enabled: true
         #cypress:
         #  envs:
         #    cypress_url: https://gitlab.dev.bigbang.mil