fix(kratos): correct initContainer formatting (#310)

#300 Added support for init-containers, but the way they were implemented led helm to interpret them as strings instead of as yaml. This was an error of communication between author and reviewer.

Example of how this is currently parsed:

```
initContainers:
|
- command: ...
```

I'm not sure why exactly the bar gets added but it does

helm/charts/kratos/templates/deployment.yaml

@@ -42,7 +42,7 @@ spec:
     {{- if .Values.deployment.extraInitContainers}}
       initContainers:
         {{- if .Values.deployment.extraInitContainers }}
-{{ toYaml ( tpl .Values.deployment.extraInitContainers . ) | indent 8 }}
+{{ tpl .Values.deployment.extraInitContainers . | indent 8 }}
         {{- end }}
     {{- end }}
       volumes:

helm/charts/kratos/templates/job-migration.yaml

@@ -46,7 +46,7 @@ spec:
       restartPolicy: Never
       {{- if .Values.deployment.extraInitContainers }}
       initContainers:
-{{ toYaml ( tpl .Values.deployment.extraInitContainers . ) | indent 8 }}
+{{ tpl .Values.deployment.extraInitContainers . | indent 8 }}
       {{- end }}
       {{- if .Values.deployment.extraVolumes }}
       volumes:

helm/charts/kratos/templates/statefulset-mail.yaml

@@ -70,7 +70,7 @@ spec:
             {{- toYaml .Values.securityContext | nindent 12 }}
       {{- if .Values.deployment.extraInitContainers }}
       initContainers:
-{{ toYaml ( tpl .Values.deployment.extraInitContainers . ) | indent 8 }}
+{{ tpl .Values.deployment.extraInitContainers . | indent 8 }}
       {{- end }}
       volumes:
         - name: {{ include "kratos.fullname" . }}-config-volume