Merge branch 'renovate/flux-flux' into 'master'

Update registry1.dso.mil/ironbank/fluxcd/notification-controller Docker tag to v1.3.0

See merge request !4386

base/flux/kustomization.yaml

@@ -12,7 +12,7 @@ images:
   newTag: v1.3.0
 - name: ghcr.io/fluxcd/notification-controller
   newName: registry1.dso.mil/ironbank/fluxcd/notification-controller
-  newTag: v1.2.4
+  newTag: v1.3.0
 - name: ghcr.io/fluxcd/source-controller
   newName: registry1.dso.mil/ironbank/fluxcd/source-controller
   newTag: v1.3.0