Merge pull request #788 from lsst-sqre/renovate/ingress-nginx-4.x

Update Helm release ingress-nginx to v4.9.1

Author: rra

deployments/ingress-nginx/Chart.yaml

@@ -3,5 +3,5 @@ name: ingress-nginx
 version: 1.0.0
 dependencies:
 - name: ingress-nginx
-  version: 4.9.0
+  version: 4.9.1
   repository: https://kubernetes.github.io/ingress-nginx