JMSSampler (P2P) does not support Timers

### Expected behavior

If I add any of the Timers e.g. Constant Throughput Timer or Precise Throughput Timer then I expect JMSSampler to respect it.

### Actual behavior

The message rate is unaffected by any settings in the Timer.

### Steps to reproduce the problem

The attached test plan has both JMS Sampler and JMS Subscriber versions, so that it is easy to toggle between them.

The Subscriber correctly locks in at 100tps; the Sampler rate varies according to the number of threads.
[QDrain-Test.jmx.txt](https://github.com/user-attachments/files/17498240/QDrain-Test.jmx.txt)

### JMeter Version

5.6.3

### Java Version

openjdk version "21.0.2" 2024-01-16 LTS

### OS Version

Microsoft Windows [Version 10.0.22631.3737]