jenkins: update to 2.568.1 LTS and chart

Change-Id: Ib6b48599a09dee669d77441c12b354240ef257b8
diff --git a/charts/jenkins/templates/secret-claims.yaml b/charts/jenkins/templates/secret-claims.yaml
index e8b6d6c..b47c7bd 100644
--- a/charts/jenkins/templates/secret-claims.yaml
+++ b/charts/jenkins/templates/secret-claims.yaml
@@ -1,7 +1,5 @@
 {{- if .Values.controller.secretClaims -}}
-{{- $r := .Release -}}
-{{- $v := .Values -}}
-{{- $chart := printf "%s-%s" .Chart.Name .Chart.Version -}}
+{{- $root := . -}}
 {{- $namespace := include "jenkins.namespace" . -}}
 {{- $serviceName := include "jenkins.fullname" . -}}
 {{ range .Values.controller.secretClaims }}
@@ -12,13 +10,9 @@
   name: {{ $serviceName }}-{{ .name | default .path | lower }}
   namespace: {{ $namespace }}
   labels:
-    "app.kubernetes.io/name": '{{ $serviceName }}'
-    {{- if $v.renderHelmLabels }}
-    "helm.sh/chart": "{{ $chart }}"
-    {{- end }}
-    "app.kubernetes.io/managed-by": "{{ $r.Service }}"
-    "app.kubernetes.io/instance": "{{ $r.Name }}"
-    "app.kubernetes.io/component": "{{ $v.controller.componentName }}"
+    {{- $baseLabels := include "jenkins.labels" $root | fromYaml }}
+    {{- $overrideLabels := dict "app.kubernetes.io/name" $serviceName }}
+    {{- toYaml (merge $overrideLabels $baseLabels) | nindent 4 }}
 spec:
   type: {{ .type | default "Opaque" }}
   path: {{ .path }}
@@ -26,4 +20,4 @@
   renew: {{ .renew }}
 {{- end }}
 {{- end }}
-{{- end }}
\ No newline at end of file
+{{- end }}