feat(argo-cd): Add argocd image updater (#477)

* Add argocd-image-updater chart

Signed-off-by: Wylie Hobbs <wylie-hobbs@pluralsight.com>

* Add maintainers

Signed-off-by: Wylie Hobbs <wylie-hobbs@pluralsight.com>

* update rbac and chart metadata

Signed-off-by: Wylie Hobbs <wylie@wyliehobbs.com>

* fix chompstyle

Signed-off-by: Wylie Hobbs <wylie@wyliehobbs.com>

* add README/template with helm-docs

Signed-off-by: Wylie Hobbs <wylie@wyliehobbs.com>

* Use correct icon url and use a generic maintainer section

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

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

charts/argocd-image-updater/Chart.yaml

@@ -0,0 +1,18 @@
+apiVersion: v2
+name: argocd-image-updater
+description: A Helm chart for Argo CD Image Updater, a tool to automatically update the container images of Kubernetes workloads which are managed by Argo CD
+type: application
+version: 0.1.0
+appVersion: v0.10.1
+home: https://github.com/argoproj-labs/argocd-image-updater
+icon: https://argocd-image-updater.readthedocs.io/en/stable/assets/logo.png
+keywords:
+  - argoproj
+  - argocd
+  - gitops
+maintainers:
+  - name: argoproj
+    url: https://argoproj.github.io/
+annotations:
+  artifacthub.io/changes: |
+    - "[Added]: First chart release"