Grafana k8s Monitoring

What's Changed

• Add example to show how to use external secrets by @petewall in https://github.com/grafana/k8s-monitoring-helm/pull/744
• Don't use two valid paths for conditions by @petewall in https://github.com/grafana/k8s-monitoring-helm/pull/747
• Add the ability to set buffer sizes for the tempo service by @petewall in https://github.com/grafana/k8s-monitoring-helm/pull/742
• Add troubleshooting doc about the ResourceExhausted error by @petewall in https://github.com/grafana/k8s-monitoring-helm/pull/743

Full Changelog: https://github.com/grafana/k8s-monitoring-helm/compare/v1.5.2...v1.5.3