upgrade lance to v0.9.1 (#727)

This brings in some important bugfixes related to take and aarch64
Linux. See changes at:
https://github.com/lancedb/lance/releases/tag/v0.9.1

python/pyproject.toml

@@ -3,7 +3,7 @@ name = "lancedb"
 version = "0.4.0"
 dependencies = [
     "deprecation",
-    "pylance==0.9.0",
+    "pylance==0.9.1",
     "ratelimiter~=1.0",
     "retry>=0.9.2",
     "tqdm>=4.27.0",

python/tests/test_table.py

@@ -21,8 +21,8 @@ import lance
 import numpy as np
 import pandas as pd
 import pyarrow as pa
-from pydantic import BaseModel
 import pytest
+from pydantic import BaseModel
 
 from lancedb.conftest import MockTextEmbeddingFunction
 from lancedb.db import LanceDBConnection