Update Argo Testing NP

Package Owner Merge Request

Package Changes

https://repo1.dso.mil/platform-one/big-bang/apps/core/argocd/-/tags/3.6.8-bb.7

https://repo1.dso.mil/platform-one/big-bang/apps/core/argocd/-/merge_requests/45

NOTE: Testing update needed for Helm tests in BB CI.