Update Helm app version (#201)

Author: pepakriz

charts/gitlab-merger-bot/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v1
 appVersion: "2.0.0-beta13"
 description: A Helm chart for Kubernetes
 name: gitlab-merger-bot
-version: 2.0.0-beta13
+version: 2.0.0-beta14
 home: https://github.com/pepakriz/gitlab-merger-bot
 maintainers:
   - name: pepakriz