fix: docker_compose_version test

Use FileSystemDataSource instead of S3DataSource
  to avoid triggering Session() creation in model_post_init. The test
  only exercises _get_compose_cmd_prefix() and needs no AWS access.

Author: zhaoqizqwang

sagemaker-train/tests/integ/train/test_docker_compose_version_detection.py

@@ -30,7 +30,7 @@
 from sagemaker.core.modules.local_core.local_container import (
     _LocalContainer as CoreModulesLocalContainer,
 )
-from sagemaker.core.shapes import Channel, DataSource, S3DataSource
+from sagemaker.core.shapes import Channel, DataSource, FileSystemDataSource
 from sagemaker.train.local.local_container import (
     _LocalContainer as TrainLocalContainer,
 )
@@ -63,10 +63,11 @@ def _get_installed_compose_major_version():
 def _make_basic_channel():
     """Create a minimal Channel for constructing _LocalContainer instances."""
     data_source = DataSource(
-        s3_data_source=S3DataSource(
-            s3_uri="s3://bucket/data",
-            s3_data_type="S3Prefix",
-            s3_data_distribution_type="FullyReplicated",
+        file_system_data_source=FileSystemDataSource(
+            file_system_id="fs-0123456789abcdef0",
+            file_system_access_mode="ro",
+            file_system_type="EFS",
+            directory_path="/tmp/sagemaker-integ-compose-data",
         )
     )
     return Channel(channel_name="training", data_source=data_source)