Grafana k8s Monitoring

What's Changed

• [dependency] Update Grafana Agent by @github-actions in https://github.com/grafana/k8s-monitoring-helm/pull/349
• Add more options for metrics tuning by @petewall in https://github.com/grafana/k8s-monitoring-helm/pull/326
• Improve how the log gathering annotation behaves. by @petewall in https://github.com/grafana/k8s-monitoring-helm/pull/351
• Extract the allow lists into their own files so they're easier to find and inspect by @petewall in https://github.com/grafana/k8s-monitoring-helm/pull/353

Full Changelog: https://github.com/grafana/k8s-monitoring-helm/compare/v0.8.6...v0.9.0