Merge branch 'update-istio-operator-tag-1.21.1-bb.0' into 'master'

istioOperator update to 1.21.1-bb.0

Closes big-bang/product/packages/istio-operator#77

See merge request !4281

chart/values.yaml

@@ -316,11 +316,11 @@ istioOperator:
   git:
     repo: https://repo1.dso.mil/big-bang/product/packages/istio-operator.git
     path: "./chart"
-    tag: "1.20.4-bb.1"
+    tag: "1.21.1-bb.0"
   helmRepo:
     repoName: "registry1"
     chartName: "istio-operator"
-    tag: "1.20.4-bb.1"
+    tag: "1.21.1-bb.0"
 
   # -- Flux reconciliation overrides specifically for the Istio Operator Package
   flux: {}