Fix xgboost and test errors

Author: americast

evadb/binder/statement_binder.py

@@ -92,7 +92,9 @@ def _bind_create_function_statement(self, node: CreateFunctionStatement):
                         outputs.append(column)
                     else:
                         inputs.append(column)
-            elif string_comparison_case_insensitive(node.function_type, "sklearn"):
+            elif string_comparison_case_insensitive(
+                node.function_type, "sklearn"
+            ) or string_comparison_case_insensitive(node.function_type, "XGBoost"):
                 assert (
                     "predict" in arg_map
                 ), f"Creating {node.function_type} functions expects 'predict' metadata."