[Fix]: Fix to skip remote sync when wandb is offline (#8755)

Author: i-aki-y

mmdet/core/hook/wandblogger_hook.py

@@ -566,10 +566,12 @@ def _log_data_table(self):
         data_artifact = self.wandb.Artifact('val', type='dataset')
         data_artifact.add(self.data_table, 'val_data')
 
-        self.wandb.run.use_artifact(data_artifact)
-        data_artifact.wait()
-
-        self.data_table_ref = data_artifact.get('val_data')
+        if not self.wandb.run.offline:
+            self.wandb.run.use_artifact(data_artifact)
+            data_artifact.wait()
+            self.data_table_ref = data_artifact.get('val_data')
+        else:
+            self.data_table_ref = self.data_table
 
     def _log_eval_table(self, idx):
         """Log the W&B Tables for model evaluation.