Fix handling of kyverno-policies version check when port in image tag (#4042)

* Fix handling of kyverno-policies version check when port in image tag
Fixes #4031

Signed-off-by: Trey Dockendorf <tdockendorf@osc.edu>

* Add release notes for chart

Signed-off-by: Trey Dockendorf <tdockendorf@osc.edu>

* Fix release notes and use splitList

Signed-off-by: Trey Dockendorf <tdockendorf@osc.edu>

charts/kyverno-policies/Chart.yaml

@@ -25,3 +25,5 @@ annotations:
   artifacthub.io/changes: |
     - kind: added
       description: Support for artifacthub.io/changes annotation
+    - kind: fixed
+      description: Fix Kyverno version check when image tag contains registry port number

charts/kyverno-policies/templates/_helpers.tpl

@@ -59,7 +59,7 @@ helm.sh/chart: {{ template "kyverno-policies.chart" . }}
 {{- $version := "" -}}
 {{- with (lookup "apps/v1" "Deployment" .Release.Namespace "kyverno") -}}
   {{- with (first .spec.template.spec.containers) -}}
-    {{- $imageTag := (split ":" .image)._1 -}}
+    {{- $imageTag := (last (splitList ":" .image)) -}}
     {{- $version = trimPrefix "v" $imageTag -}}
   {{- end -}}
 {{- end -}}