[O11y][MySQL] Support master-master setup metrics in mysql integration

[harnish-elastic]

MySQL integration doesn't support the master-master setup query for data collection. Hence need to analysis on master-master setup and further perform the following tasks,

• [ ] Link/mention master-master setup steps in the documentation.
  • https://docs.percona.com/percona-xtradb-cluster/8.0/configure-nodes.html
  • https://docs.percona.com/percona-xtradb-cluster/8.0/docker.html
• [ ] Add new data stream to collect master-master setup metrics
  • SHOW STATUS LIKE 'wsrep%';