refactor!: remove actions runner token provisioning (#15)

To be discussed. In https://gitea.com/gitea/helm-actions/issues/9#issuecomment-1002191 and https://gitea.com/gitea/helm-actions/pulls/13 I described that a migration of provisioning is currently not feasible due to
- helm limitations
  - You are forced to repeat a lot of stuff for the default branch
  -  helm-actions cannot read values of the helm-gitea chart to fix this
- No agreement about making helm-gitea a optional dependency of helm-actions can be reached at the moment

# Proposal

- Create a new repository that includes both helm-gitea **and** helm-actions
- Provisioning leaves this repository as well like it did in helm-gitea
- Create that as gitea/helm-stack or whatever name
- Provisioning code and tests moves to gitea/helm-stack

We would need help with the repository creation

Reviewed-on: https://gitea.com/gitea/helm-actions/pulls/15
Reviewed-by: DaanSelen <daanselen@noreply.gitea.com>
Co-authored-by: ChristopherHX <christopherhx@noreply.gitea.com>
Co-committed-by: ChristopherHX <christopherhx@noreply.gitea.com>

unittests/helm/statefulset.yaml

@@ -69,7 +69,7 @@ tests:
           name: gitea-unittests-actions-act-runner
       - equal:
           path: spec.template.metadata.annotations["checksum/config"]
-          value: "e01f6cc186c5b523cba245cbfc9d556df49a71f7f650c979c2dbfd2bf40b9098"
+          value: "7566d9c60261bf8cbff6a6936fc7aead96cec540d8c793d142a5ad4664c56ba5"
   - it: renders a StatefulSet http (with correct GITEA_INSTANCE_URL env from giteaRootURL)
     template: templates/statefulset.yaml
     set: