Handle NotImplementedError for metadata property

Some RetrievalJob implementations don't implement the metadata property
and raise NotImplementedError. Wrap metadata access in try-except to
gracefully handle this case and maintain backward compatibility.

Fixes CI test failure in test_retrieval_job_dataframe.py

Author: Ambient Code Bot

sdk/python/feast/infra/offline_stores/offline_store.py

@@ -157,8 +157,13 @@ def to_arrow(
             # Build a mapping of ODFV name to requested feature names
             # This ensures we only return the features that were explicitly requested
             odfv_feature_refs = {}
-            if self.metadata and self.metadata.features:
-                for feature_ref in self.metadata.features:
+            try:
+                metadata = self.metadata
+            except NotImplementedError:
+                metadata = None
+
+            if metadata and metadata.features:
+                for feature_ref in metadata.features:
                     if ":" in feature_ref:
                         view_name, feature_name = feature_ref.split(":", 1)
                         # Check if this view_name matches any of the ODFVs