Update Score labels

These should be defined in the chart, for example:
```
app.kubernetes.io/name: score
app.kubernetes.io/instance: wordpress-abcxzy
app.kubernetes.io/version: "5.7.21"
app.kubernetes.io/component: database
app.kubernetes.io/part-of: wordpress
app.kubernetes.io/managed-by: 
{{ include "score.labels" . | indent 4 }}
```
where `score.labels` is a value that can be defined in the values.yml.
