Add if block to daemonset annotations to not include field if nil (#14079)

Signed-off-by: ChiefAlexander <alex.harder@fishtech.group>

stable/nginx-ingress/Chart.yaml

@@ -1,6 +1,6 @@
 apiVersion: v1
 name: nginx-ingress
-version: 1.6.12
+version: 1.6.13
 appVersion: 0.24.1
 home: https://github.com/kubernetes/ingress-nginx
 description: An nginx Ingress controller that uses ConfigMap to store the nginx configuration.

stable/nginx-ingress/templates/controller-daemonset.yaml

@@ -16,10 +16,12 @@ spec:
   minReadySeconds: {{ .Values.controller.minReadySeconds }}
   template:
     metadata:
+      {{- if .Values.controller.podAnnotations }}
       annotations:
       {{- range $key, $value := .Values.controller.podAnnotations }}
         {{ $key }}: {{ $value | quote }}
       {{- end }}
+      {{- end }}
       labels:
         app: {{ template "nginx-ingress.name" . }}
         component: "{{ .Values.controller.name }}"