fix(format): Break long docstring line to meet line length requirements

- Split long docstring line in get_primary_keys method across multiple lines
- Addresses @aaronsteers feedback on line length issue in PR comment
- Maintains readability while complying with formatting standards

Co-Authored-By: AJ Steers <[email protected]>

Author: devin-ai-integration[bot]

airbyte_cdk/sql/shared/catalog_providers.py

@@ -122,7 +122,9 @@ def get_primary_keys(
     ) -> list[str] | None:
         """Return the primary keys for the given stream.
 
-        We return `source_defined_primary_key` if set, or `primary_key` otherwise. If both are set, we assume they should not should differ, since Airbyte data integrity constraints do not permit overruling a source's pre-defined primary keys. If neither is set, we return `None`.
+        We return `source_defined_primary_key` if set, or `primary_key` otherwise. If both are set,
+        we assume they should not should differ, since Airbyte data integrity constraints do not
+        permit overruling a source's pre-defined primary keys. If neither is set, we return `None`.
         """
         configured_stream = self.get_configured_stream_info(stream_name)
         pks = configured_stream.stream.source_defined_primary_key or configured_stream.primary_key