Bump vault chart version to fix CI

The older chart is not compatible with K8s 1.21, which is used in our system tests.

Author: coro

docs/examples/vault-default-user/setup.sh

@@ -14,7 +14,7 @@ helm repo update
 # For OpenShift deployments, also set the following:
 # --set "global.openshift=true"
 helm install vault hashicorp/vault \
-    --version 0.16.1 \
+    --version 0.19.0 \
     --set='server.dev.enabled=true' \
     --set='server.logLevel=debug' \
     --set='injector.logLevel=debug' \