feat(argo-rollouts): Support LoadBalancer settings for dashboard Service (#1074)

* feat(argo-rollouts): +LB service.type for dashboard svc

Signed-off-by: Maciej Lasyk <maciej@lasyk.info>

* Apply changes from code review

Signed-off-by: Marco Kilchhofer <mkilchhofer@users.noreply.github.com>

Co-authored-by: Marco Kilchhofer <mkilchhofer@users.noreply.github.com>

charts/argo-rollouts/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v2
 appVersion: "v1.1.0"
 description: A Helm chart for Argo Rollouts
 name: argo-rollouts
-version: 2.7.0
+version: 2.8.0
 icon: https://argoproj.github.io/argo-rollouts/assets/logo.png
 home: https://github.com/argoproj/argo-helm
 maintainers:
@@ -11,4 +11,5 @@ maintainers:
   - name: jessesuen
 annotations:
   artifacthub.io/changes: |
-    - "[Added]: Support high availability (HA) mode for controller with multiple replicas"
+    - "[Added]: Ability to specify LoadBalancer settings for dashboard svc"
+    - "[Added]: Ability to specify external IPs for dashboard svc"