Bump minimum zigpy version

puddly · puddly · commit 67439af4e85a · 2022-08-19T19:35:25.000-04:00
diff --git a/setup.cfg b/setup.cfg
@@ -15,7 +15,7 @@ python_requires = >=3.7
 install_requires =
     pyserial-asyncio; platform_system!="Windows"
     pyserial-asyncio!=0.5; platform_system=="Windows"  # 0.5 broke writes
-    zigpy>=0.47.0
+    zigpy>=0.50.0
     async_timeout
     voluptuous
     coloredlogs
