Bump chart version

charts/chronograf/Chart.yaml

 apiVersion: v1
 name: chronograf
-version: 1.1.4
+version: 1.1.5
 appVersion: 1.7.12
 description: Open-source web application written in Go and React.js that provides
   the tools to visualize your monitoring data and easily create alerting and automation

charts/kapacitor/Chart.yaml

 apiVersion: v1
 name: kapacitor
-version: 1.2.4
+version: 1.2.5
 appVersion: 1.5.3
 description: InfluxDB's native data processing engine. It can process both stream
   and batch data from InfluxDB.

charts/telegraf/Chart.yaml

 apiVersion: v1
 name: telegraf
-version: 1.7.3
+version: 1.7.4
 appVersion: 1.13
 deprecated: false
 description: Telegraf is an agent written in Go for collecting, processing, aggregating, and writing metrics.