chore: bump python-sdk to 0.5.0

Author: Leechael

sdk/python/pyproject.toml

@@ -4,10 +4,11 @@
 
 [project]
 name = "dstack-sdk"
-version = "0.2.0"
+version = "0.5.0"
 description = "dstack SDK for Python"
 authors = [
     {name = "Leechael Yim", email = "yanleech@gmail.com"},
+    {name = "Kevin Wang", email = "wy721@qq.com"},
 ]
 dependencies = [
     "httpx>=0.27.2",