ScyllaDB Monitoring Stack Release 2.2

ScyllaDB Monitoring Stack 2.2, an open-source monitoring solution based on Prometheus and Grafana, has been released to support ScyllaDB Enterprise and Open Source versions. This release introduces a new CQL optimization dashboard to aid in identifying development issues such as non-prepared statements and remote data center requests, as well as unified target files to simplify Prometheus configuration. Enhancements include a per-machine dashboard for enterprise users, the ability for the Prometheus container to use the current user ID and group, and improvements to the shutdown process with the kill-all.sh script. Additional updates feature the removal of version numbers from dashboard names, an update to Alertmanager 0.16, and the necessity of aligning Data Center names for the new optimization dashboard. These changes aim to streamline monitoring tasks and improve the efficiency and user experience of ScyllaDB deployments.