metrics use svc.cluster.local to reach nc-server

[MichaelSp]

Pull Request

Description of the change

use FQDN to access nextcloud server from metrics server

Benefits

avoid an error message, where metrics was not able to reach NC-server

Possible drawbacks

🤷

Applicable issues

• fixes #

Additional information

Checklist

• [x] DCO has been signed off on the commit.
• [x] Chart version bumped in Chart.yaml according to semver.
• [ ] (optional) Variables are documented in the README.md

[QuinnBast]

LG2M, nice find.