chore(argo-events): upgrade argo-events to app version 1.7.3 (#1499)

charts/argo-events/Chart.yaml

@@ -1,8 +1,8 @@
 apiVersion: v2
-appVersion: v1.7.2
+appVersion: v1.7.3
 description: A Helm chart for Argo Events, the event-driven workflow automation framework
 name: argo-events
-version: 2.0.5
+version: 2.0.6
 home: https://github.com/argoproj/argo-helm
 icon: https://argoproj.github.io/argo-events/assets/logo.png
 keywords:
@@ -15,4 +15,4 @@ maintainers:
     url: https://argoproj.github.io/
 annotations:
   artifacthub.io/changes: |
-    - "[Changed]: Upgrade Argo events controller to v1.7.2"
+    - "[Changed]: Upgrade Argo events controller to v1.7.3"