Revert "bump version"

This reverts commit 7d040fa6.

chart/values.yaml

@@ -9,7 +9,7 @@ fullnameOverride: ""
 image:
   repository: "cr.gitlab-int.switch.ch/maps/shibboleth-sp-helm-chart/image/shibboleth-sp"
   pullPolicy: IfNotPresent
-  tag: "0.2.1"
+  tag: "0.2.0"
 
 # Specify all secret(s) required to pull the images used for this installation.
 # imagePullSecrets: