chart: update tag to master-head for development branch

Signed-off-by: Derek Su <derek.su@suse.com>

deploy/chart/local-path-provisioner/Chart.yaml

 apiVersion: v1
 description: Use HostPath for persistent local storage with Kubernetes
 name: local-path-provisioner
-version: 0.0.25-dev
-appVersion: "v0.0.25-dev"
+version: master-head
+appVersion: "master-head"
 keywords:
   - storage
   - hostpath