build: update Azure Functions Python Library V2 version to 2.3.0b3

Author: AzureFunctions

azure/functions/__init__.py

@@ -117,4 +117,4 @@
     'mcp_content',
 )
 
-__version__ = '2.3.0b2'
+__version__ = '2.3.0b3'

pyproject.toml

@@ -15,7 +15,7 @@ classifiers = [
     'Intended Audience :: Developers',
     'Programming Language :: Python :: 3',
     'Programming Language :: Python :: 3.13',
-    'Programming Language :: Python :: 3.14',
+'Programming Language :: Python :: 3.14',
     'Operating System :: Microsoft :: Windows',
     'Operating System :: POSIX',
     'Operating System :: MacOS :: MacOS X',