fix(argo-workflows): change chart icon to match other charts (#2018)

fix(argo-workflows): change chart image to match other charts

This will make the charts all look nice when you go to https://artifacthub.io/packages/search?repo=argo&sort=relevance&page=1

Signed-off-by: jmeridth <jmeridth@gmail.com>

charts/argo-workflows/Chart.yaml

@@ -3,8 +3,8 @@ appVersion: v3.4.7
 name: argo-workflows
 description: A Helm chart for Argo Workflows
 type: application
-version: 0.26.0
-icon: https://raw.githubusercontent.com/argoproj/argo-workflows/master/docs/assets/argo.png
+version: 0.26.1
+icon: https://argoproj.github.io/argo-workflows/assets/logo.png
 home: https://github.com/argoproj/argo-helm
 sources:
   - https://github.com/argoproj/argo-workflows
@@ -13,5 +13,5 @@ maintainers:
     url: https://argoproj.github.io/
 annotations:
   artifacthub.io/changes: |
-    - kind: fix
-      description: Drop .Values.useDefaultArtifactRepo flag to simplify usage
+    - kind: chore
+      description: Update Chart icon