Just removes some annoying warning messages when you add annotations. (#15103)

Signed-off-by: Robert Van Voorhees <rcvanvo@gmail.com>

stable/concourse/Chart.yaml

@@ -1,6 +1,6 @@
 apiVersion: v1
 name: concourse
-version: 8.0.1
+version: 8.0.2
 appVersion: 5.3.0
 description: Concourse is a simple and scalable CI system.
 icon: https://avatars1.githubusercontent.com/u/7809479

stable/concourse/values.yaml

@@ -1403,7 +1403,7 @@ web:
     ##   service.beta.kubernetes.io/aws-load-balancer-backend-port: "atc"
     ##   service.beta.kubernetes.io/aws-load-balancer-ssl-ports: "443"
     ##
-    annotations:
+    annotations: {}
 
     ## When using `web.service.type: LoadBalancer`, whitelist the load balancer to particular IPs
     ## Example:
@@ -1436,7 +1436,7 @@ web:
     ##   kubernetes.io/ingress.class: nginx
     ##   kubernetes.io/tls-acme: 'true'
     ##
-    annotations:
+    annotations: {}
 
     ## Hostnames.
     ## Must be provided if Ingress is enabled.