Adding Conditional Support for Monitoring of Gitlab Redis Installations

Package Merge Request

• Bumping Gitlab to Package version 5.3.1-bb.11
• Adding Gitlab passthrough template values to conditionally enable & configure redis-exporter + ServiceMonitor.

Package Changes

Adding NetworkPolicy to allow prometheus to scrap gitlab redis installation.

Package MR

https://repo1.dso.mil/platform-one/big-bang/apps/developer-tools/gitlab/-/merge_requests/108

For Issue

Closes https://repo1.dso.mil/platform-one/big-bang/apps/application-utilities/redis/-/issues/6