Merge branch 'update-istio-controlplane-tag-1.20.4-bb.1' into 'master'

istio update to 1.20.4-bb.1

Closes big-bang/product/packages/istio-controlplane#147

See merge request !4103

(cherry picked from commit c0b297ef)

d7961505 Updated istio git tag

chart/values.yaml

@@ -174,11 +174,11 @@ istio:
   git:
     repo: https://repo1.dso.mil/big-bang/product/packages/istio-controlplane.git
     path: "./chart"
-    tag: "1.20.4-bb.0"
+    tag: "1.20.4-bb.1"
   helmRepo:
     repoName: "registry1"
     chartName: "istio"
-    tag: "1.20.4-bb.0"
+    tag: "1.20.4-bb.1"
     # -- If the HelmRelease should verify the cosign signature of the HelmRepo (only relevant if Repo is OCI).  Set to 'false' to disable verification.
     # cosignVerify: