chore: use the new api for ingress (#20648)

Signed-off-by: Abdulrahman Khalil <a.skhalil93@gmail.com>

stable/grafana/Chart.yaml

@@ -1,6 +1,6 @@
 apiVersion: v1
 name: grafana
-version: 5.0.3
+version: 5.0.4
 appVersion: 6.6.2
 kubeVersion: "^1.8.0-0"
 description: The leading tool for querying and visualizing time series and metrics.

stable/grafana/templates/ingress.yaml

@@ -3,7 +3,11 @@
 {{- $servicePort := .Values.service.port -}}
 {{- $ingressPath := .Values.ingress.path -}}
 {{- $extraPaths := .Values.ingress.extraPaths -}}
+{{- if .Capabilities.APIVersions.Has "networking.k8s.io/v1beta1" }}
+apiVersion: networking.k8s.io/v1beta1
+{{ else }}
 apiVersion: extensions/v1beta1
+{{ end -}}
 kind: Ingress
 metadata:
   name: {{ $fullName }}