[plugin][pulsar] Handle the SendCallback method sign changed.

[dao-jun]

In https://github.com/apache/pulsar/pull/22940, Pulsar will change the org.apache.pulsar.client.impl.SendCallback#sendComplete method sign from

public void sendComplete(Exception e)

to

public void sendComplete(Throwable t, OpSendMsgStats stats)

This PR is to address it.

• [x] Update the CHANGES log.

[wu-sheng]

Please fix CI and we need to add the new versions to the test scenarios to verify.

Also, you need to make CI passed.

[wu-sheng]

Could you fix the CI first? Then we need to wait for Pulsar's next release.

[wu-sheng]

No update for a month. Close for now.