grafana update to 7.3.7-bb.0

Package Merge Request

Package Changes

https://repo1.dso.mil/big-bang/product/packages/grafana/-/blob/7.3.7-bb.0/CHANGELOG.md

Package MR

big-bang/product/packages/grafana!61 (merged)

For Issue

Closes Renovate: Upgrade Grafana Package Dependencies (#29) · Issues · Big Bang / Universe / Product / Grafana · GitLab (dso.mil)

Upgrade Notices

N/A