feat(helm): add service values

[oliverbaehler]

Ciao Marc

Sorry I wasn't able to update the helm-docs locally:

go: downloading github.com/coreos/go-semver v0.3.0
sed: 1: "./chart/Chart.yaml": invalid command code .
sed: 1: "./chart/Chart.yaml": invalid command code .
make: *** [update-chart-version] Error 1

might be darwin related

[bakito]

@oliverbaehler Thank you for the PR

Does the make helm-docs work if you remove the update-chart-version in the Makefile?

helm-docs: tb.helm-docs update-chart-version

-->

helm-docs: tb.helm-docs

[bakito]

@oliverbaehler

Please rebase and run make helm-docs` again. The darwin issue could be fixed.

[oliverbaehler]

@bakito 🫡