v0.0.6

Changes

• Export ray metrics to prometheus @psschwei (#296)
• Add Promtail to system @akihikokuroda (#293)
• Issue 217 | Docs: getting started 3 level tutorials @IceKhan13 (#222)
• add Loki in helm and docker-compose @akihikokuroda (#290)
• Setup prometheus in the system @psschwei (#288)
• Drop manager from helm install @psschwei (#271)
• Retire manager component @psschwei (#265)
• Issue 254 | Gateway service @IceKhan13 (#274)
• Repository project @Tansito (#151)
• Implement method to create kuberay cluster via apiserver @psschwei (#241)
• Add authentication to apiserver @akihikokuroda (#235)