Update branch version to 3.0.0b2 (#9221)

* fix speed ppt eval hang

* update version

* update version

Author: gongel

setup.py

@@ -112,7 +112,7 @@ def show():
 
 
 # only use this file to contral the version
-__version__ = "3.0.0b1.post"
+__version__ = "3.0.0b2.post"
 if os.getenv(PADDLENLP_STABLE_VERSION):
     __version__ = __version__.replace(".post", "")
 else: