Support for Kubernetes

[guilload]

• [x] Stop passing resolved addresses to Chitchat
• [x] Pass public gRPC addresses to Chitchat
• [x] Add node config overrides via env vars for cluster ID, node ID, ... (at least for the run command)
• [x] Add support for web identity providers
• [x] Write Kube manifests for indexer and searcher deployments
• [ ] Add readiness and liveness endpoints to Quickwit services
• [ ] Add readiness and lives probes to deployments
• [ ] Ensure Quickwit executable/services shut down gracefully on TERM signal
• [ ] Ensure Quickwit images (latest and nightly) are properly built and pushed on Docker Hub
• [ ] Test on local dev cluster
• [ ] Test on EKS cluster
• [ ] Update docs

Optional

• [ ] Create Helm chart
• [x] Setup Helm chart repo (GitHub pages)