grafana update to 7.3.9-bb.1

Package Merge Request

Package Changes

https://repo1.dso.mil/big-bang/product/packages/grafana/-/blob/7.3.9-bb.1/CHANGELOG.md

Package MR

big-bang/product/packages/grafana!103 (merged)

For Issue

Closes (big-bang/product/packages/grafana#57 (closed))

Upgrade Notices

N/A