thanos update to 17.6.0-bb.2

Package Merge Request

Package Changes

https://repo1.dso.mil/big-bang/product/packages/thanos/-/blob/17.6.0-bb.2/CHANGELOG.md

Package MR

big-bang/product/packages/thanos!169 (merged)

For Issue

Closes: big-bang/product/packages/thanos#146 (closed)

Upgrade Notices

N/A