style(python): apply ruff fixes

Author: kvinwang

sdk/python/src/dstack_sdk/__init__.py

@@ -4,15 +4,15 @@
 
 from .dstack_client import AsyncDstackClient
 from .dstack_client import AsyncTappdClient
+from .dstack_client import AttestGpuResponse
 from .dstack_client import AttestResponse
 from .dstack_client import DstackClient
 from .dstack_client import EventLog
 from .dstack_client import GetKeyResponse
 from .dstack_client import GetQuoteResponse
 from .dstack_client import GetTlsKeyResponse
-from .dstack_client import AttestGpuResponse
-from .dstack_client import GpuInfoResponse
 from .dstack_client import GpuEvidenceBundle
+from .dstack_client import GpuInfoResponse
 from .dstack_client import InfoResponse
 from .dstack_client import SignResponse
 from .dstack_client import TappdClient

sdk/python/src/dstack_sdk/dstack_client.py

@@ -171,6 +171,7 @@ class GpuEvidenceBundle(BaseModel):
 
 class AttestGpuResponse(BaseModel):
     """Result of fresh, on-demand GPU evidence collection."""
+
     bundles: list[GpuEvidenceBundle]