Merge branch 'update-neuvector-tag-2.6.3-bb.15' into 'master'

neuvector update to 2.6.3-bb.15

Closes big-bang/product/packages/neuvector#74

See merge request !4008

chart/values.yaml

@@ -749,11 +749,11 @@ neuvector:
   git:
     repo: https://repo1.dso.mil/big-bang/product/packages/neuvector.git
     path: "./chart"
-    tag: "2.6.3-bb.14"
+    tag: "2.6.3-bb.15"
   helmRepo:
     repoName: "registry1"
     chartName: "neuvector"
-    tag: "2.6.3-bb.14"
+    tag: "2.6.3-bb.15"
 
   # -- Redirect the package ingress to a specific Istio Gateway (listed in `istio.gateways`).  The default is "public".
   ingress: