Completable Reactor writes metrics with labels

[KuznetsovVlad]

Now reactor writes metrics like this:
ru_fix_completable_reactor_runtime_{OperationType}_{GraphName}_{VertexName}_latencyMax{label="value", .....}

should be:
completable_reactor_latencyMax{label="value", payload="GraphName" vertex="VertexName", operation="OperationType"}