Update tools/jmx submodule
Update tools/jmx submodule

* tools/jmx c51906e...6174a47 (2):
  > Relocatable Package: create product prefixed relocatable archive
  > build(deps-dev): bump junit from 4.8.2 to 4.13.1

scylladb/scylla,scylladb/scylla,scylladb/scylla,scylladb/scylla