Merge branch 'update-grafana-tag-7.2.1-bb.4' into 'master'

grafana update to 7.2.1-bb.4

Closes big-bang/product/packages/grafana#13

See merge request !3758

chart/values.yaml

@@ -925,11 +925,11 @@ grafana:
   git:
     repo: https://repo1.dso.mil/big-bang/product/packages/grafana.git
     path: "./chart"
-    tag: "7.2.1-bb.3"
+    tag: "7.2.1-bb.4"
   helmRepo:
     repoName: "registry1"
     chartName: "grafana"
-    tag: "7.2.1-bb.3"
+    tag: "7.2.1-bb.4"
 
   # -- Flux reconciliation overrides specifically for the Monitoring Package
   flux: {}