mimir update to 5.8.0-bb.1

Package Merge Request

Package Changes

https://repo1.dso.mil/big-bang/product/packages/mimir/-/blob/5.8.0-bb.1/CHANGELOG.md

NOTE: Mimir was one of the first "passthrough" charts - we just needed to add the upstream alias.

Package MR

big-bang/product/packages/mimir!73 (merged)

For Issue

Closes big-bang/product/packages/mimir#81 (closed)

Upgrade Notices

All values currently under key mimir-distributed will need to be shifted under the upstream key to conform to new Big Bang passthrough chart standards.

Previous Values:

mimir-distributed:
 image:
 repository: registry1.dso.mil/ironbank/opensource/grafana/mimir
 tag: 2.17.0
 pullSecrets:
 - private-registry
 ...

Current Values:

upstream:
 image:
 repository: registry1.dso.mil/ironbank/opensource/grafana/mimir
 tag: 2.17.0
 pullSecrets:
 - private-registry
 ...