cluster auditor: Update opa-exporter to run as non-root user

Package Merge Request

Package Changes

https://repo1.dso.mil/platform-one/big-bang/apps/core/cluster-auditor/-/blob/1.4.0-bb.4/CHANGELOG.md

Package MR

https://repo1.dso.mil/platform-one/big-bang/apps/core/cluster-auditor/-/merge_requests/80

For Issue

Closes https://repo1.dso.mil/platform-one/big-bang/apps/core/cluster-auditor/-/issues/54