fix kubectl version (#20841)

Signed-off-by: --replace-all <matthieu.paret@lifen.fr>

stable/kured/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v1
 appVersion: "1.2.0"
 description: A Helm chart for kured
 name: kured
-version: 1.4.2
+version: 1.4.3
 home: https://github.com/weaveworks/kured
 maintainers:
   - name: plumdog

stable/kured/values.yaml

@@ -20,7 +20,7 @@ autolock:
   enabled: false
   image:
     repository: docker.io/bitnami/kubectl
-    tag: 1.15.4
+    tag: 1.15.3
   scheduleUnlock: 0 4 * * *
   schedulelock: 0 6 * * *