chore: export TableProviderFactory from datafusion.catalog

The ABC is defined in datafusion.catalog beside CatalogProvider and
SchemaProvider, which are in its __all__, but was only listed in the
package root's __all__.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

Author: timsaucer

python/datafusion/catalog.py

@@ -45,6 +45,7 @@
     "Schema",
     "SchemaProvider",
     "Table",
+    "TableProviderFactory",
 ]