chore: platform specific syntax for pulsar-client
chore: platform specific syntax for pulsar-client

1. use pulsar-client == 2.10.0 for macos since 2.10.1 for macos not published
2. remove markdown since 3.3.5 is yanked

Signed-off-by: weiwee <55f89532913a49bd663cced9d8f0fa01c4dcc8b3@gmail.com>

FederatedAI/FATE,FederatedAI/FATE,FederatedAI/FATE