JVM metrics aren't labelled with common labels that we apply to all the org_apache_cassandra_metrics* ones such as: cluster, datacenter, rack, pod_name, node_name.
We need all jvm metrics to be labelled appropriately so that we can build consistent dashboards.
### Definition of Done
- [x] `jvm_*` metrics are labelled like the `org_apache_cassandra_metrics` are
JVM metrics aren't labelled with common labels that we apply to all the
org_apache_cassandra_metrics*
ones such as: cluster, datacenter, rack, pod_name, node_name.We need all jvm metrics to be labelled appropriately so that we can build consistent dashboards.