Fix installing and importing iree-turbine (#2175)

The package was renamed from `shark-turbine` to `iree.turbine` with
iree-org/iree-turbine@40016ad.

apps/shark_studio/modules/ckpt_processing.py

@@ -4,7 +4,7 @@ import re
 import requests
 import torch
 import safetensors
-from shark_turbine.aot.params import (
+from iree.turbine.aot.params import (
     ParameterArchiveBuilder,
 )
 from io import BytesIO