chore(argocd-image-updater): Update dependency argoproj-labs/argocd-image-updater to v0.16.0

Signed-off-by: argoproj-renovate[bot] <161757507+argoproj-renovate[bot]@users.noreply.github.com>

charts/argocd-image-updater/Chart.yaml

@@ -2,8 +2,8 @@ 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: 0.12.0
-appVersion: v0.15.2
+version: 0.12.1
+appVersion: v0.16.0
 home: https://github.com/argoproj-labs/argocd-image-updater
 icon: https://argocd-image-updater.readthedocs.io/en/stable/assets/logo.png
 keywords:
@@ -19,4 +19,4 @@ annotations:
     url: https://argoproj.github.io/argo-helm/pgp_keys.asc
   artifacthub.io/changes: |
     - kind: changed
-      description: ConfigMap and Secret names are now configurable
+      description: Bump argocd-image-updater to v0.16.0