feat(argo-workflows): Add global tag (#1377)

* feat(argo-workflows): Moved `.Values.images` values to global
Signed-off-by: yu-croco <yuki.kita22@gmail.com>

* Revert "feat(argo-workflows): Moved `.Values.images` values to global"
This reverts commit 67b4294675440ba2dfef5c8db8473d416144cc35.
Signed-off-by: yu-croco <yuki.kita22@gmail.com>

* feat(argo-workflows): Add global tag
Signed-off-by: yu-croco <yuki.kita22@gmail.com>

charts/argo-workflows/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v2
 name: argo-workflows
 description: A Helm chart for Argo Workflows
 type: application
-version: 0.16.7
+version: 0.16.8
 appVersion: v3.3.8
 icon: https://raw.githubusercontent.com/argoproj/argo-workflows/master/docs/assets/argo.png
 home: https://github.com/argoproj/argo-helm
@@ -15,4 +15,4 @@ maintainers:
   - name: benjaminws
 annotations:
   artifacthub.io/changes: |
-    - "[Changed]: Assign common labels to some resources"
+    - "[Added]: Set global tag"