node_probe: toppartitions: Fix wrong class in getMethod
node_probe: toppartitions: Fix wrong class in getMethod

We check for the existence of the new toppartitions JMX API
using Class.getMethod, but use wrong class for List<String>
in parameter list. This change fixes that.

scylladb/scylla-tools-java,scylladb/scylla-tools-java,scylladb/scylla-tools-java,scylladb/scylla-tools-java