Narrow Python SDK publish trigger to sdk/python/ only

Was sdk/** which fired on Node SDK changes too, causing
unnecessary builds and failed re-uploads to PyPI.

Author: teovl

.github/workflows/publish-python-sdk.yml

@@ -6,7 +6,7 @@ on:
       - 'build/**'
       - 'main'
     paths:
-      - 'sdk/**'
+      - 'sdk/python/**'
       - '.github/workflows/publish-python-sdk.yml'
 
 permissions: