chore(influxdb): change username to user

Author: duanhongyi

charts/workflow/values.yaml

@@ -237,7 +237,7 @@ monitor:
     # Configure the following ONLY if using an off-cluster Influx database
     url: "http://my.influx.url:8086"
     database: "kubernetes"
-    username: "username"
+    user: "user"
     password: "password"
     # Configure the following ONLY if you want persistence for on-cluster influxdb
     # GCP PDs and EBS volumes are supported only