(fix): string dtype test to match zarr-python

tests/test_v2.py

@@ -157,18 +157,11 @@ def test_v2_encode_decode_with_data(dtype_value, tmp_path):
 
 
 @pytest.mark.parametrize("dtype", [str, "str"])
-async def test_create_dtype_str(dtype: Any, tmp_path: Path) -> None:
-    arr = zarr.create(
-        store=tmp_path,
-        shape=3,
-        dtype=dtype,
-        zarr_format=2,
-        # https://github.com/zarr-developers/zarr-python/issues/2627
-        filters=zarr.codecs.vlen_utf8.VLenUTF8(),
-    )
+async def test_create_dtype_str(dtype: Any, tmp_path) -> None:
+    arr = zarr.create(store=tmp_path, shape=3, dtype=dtype, zarr_format=2)
     assert arr.dtype.kind == "O"
     assert arr.metadata.to_dict()["dtype"] == "|O"
-    assert arr.metadata.filters == (zarr.codecs.vlen_utf8.VLenUTF8(),)
+    assert arr.metadata.filters == (numcodecs.vlen.VLenBytes(),)
     arr[:] = [b"a", b"bb", b"ccc"]
     result = arr[:]
     np.testing.assert_array_equal(