fix(mosquitto): set password file when auth is enabled (#3216)

* fix(mosquitto): set password file when auth is enabled

* Update Chart.yaml

* Update README.md.gotmpl

charts/stable/mosquitto/Chart.yaml

@@ -21,7 +21,7 @@ name: mosquitto
 sources:
 - https://github.com/eclipse/mosquitto
 type: application
-version: 6.0.18
+version: 6.0.19
 annotations:
   truecharts.org/catagories: |
     - homeautomation

charts/stable/mosquitto/values.yaml

@@ -22,6 +22,7 @@ configmap:
         listener {{ .Values.service.main.ports.main.port }}
         {{- if .Values.auth.enabled }}
         allow_anonymous false
+        password_file /mosquitto/data/passwords.txt
         {{- else }}
         allow_anonymous true
         {{- end }}