[K8S Dogfooding] Use the fault tolerance feature branch for our own k8s runners

The fault tolerance functionality can be tested perfectly inside our own k8s cluster running our Runner jobs to verify that it's working as expected.

The feature branch should be rebased on top of main to closely follow latest changes.

Workflow:

gitGraph
    commit id: "HEAD"
    branch "feature/fault-tolerance"
    checkout main
    commit id: "New commit"
    checkout "feature/fault-tolerance"
    commit id: "Fault tolerance implementation"
    checkout main
    checkout "feature/fault-tolerance"
    merge main id: "Rebase new commit from main"
    commit id: "New commit rebased on fault tolerance"
    commit id: "Deploy to Kubernetes" type: HIGHLIGHT