Merge branch 'update-thanos-tag-15.7.9-bb.6' into 'master'

thanos update to 15.7.9-bb.6

Closes big-bang/product/packages/thanos#69

See merge request !4836

chart/values.yaml

@@ -2058,12 +2058,12 @@ addons:
 
     git:
       repo: https://repo1.dso.mil/big-bang/product/packages/thanos.git
-      tag: "15.7.9-bb.5"
+      tag: "15.7.9-bb.6"
       path: "./chart"
     helmRepo:
       repoName: "registry1"
       chartName: "thanos"
-      tag: "15.7.9-bb.5"
+      tag: "15.7.9-bb.6"
 
     # -- Flux reconciliation overrides specifically for the Thanos Package
     flux: {}