feat(argo-rollouts): Allow additional containers in controller deployment (#999)

* feat: Allow additional containers in controller deployment

Our local metrics setup uses an extra container for the controller
deployment. Adding this in case others have a similar use case.

Signed-off-by: Brian Johnson <b2jrock@gmail.com>

* Apply suggesstions from code review

Signed-off-by: Brian Johnson <b2jrock@gmail.com>

* Bump minor version

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: 2.3.0
+version: 2.4.0
 icon: https://argoproj.github.io/argo-rollouts/assets/logo.png
 home: https://github.com/argoproj/argo-helm
 maintainers:
@@ -11,4 +11,4 @@ maintainers:
   - name: jessesuen
 annotations:
   artifacthub.io/changes: |
-    - "[Added]: Support for extraArgs for controller and dashboard"
+    - "[Added]: Support for extraContainers for controller deployment"