Link to plugwise v0.37.3, bump to v0.48.2a0 test-version

Author: bouwew

custom_components/plugwise/manifest.json

@@ -8,6 +8,6 @@
   "integration_type": "hub",
   "iot_class": "local_polling",
   "loggers": ["plugwise"],
-  "requirements": ["plugwise==0.37.2"],
-  "version": "0.48.1"
+  "requirements": ["plugwise==0.37.3"],
+  "version": "0.48.2a0"
 }