Set dump_exported_program to True in bench (#131670)

Summary:
X-link: pytorch/pytorch#131670
Approved by: https://github.com/titaiwangms

Reviewed By: clee2000

Differential Revision: D60211332

fbshipit-source-id: 73645815dd998da88a0a3731dd0dcad392bf3b96

userbenchmark/dynamo/dynamobench/common.py

@@ -1690,7 +1690,7 @@ def forward(self, *args):
             torch_onnx.patch_torch(
                 error_report=True,
                 profile=True,
-                dump_exported_program=False,
+                dump_exported_program=True,
                 artifacts_dir=os.path.dirname(output_path),
             )
         else: