fix(arkiect): fix inner tool

Author: wgzesg-bd

arkitect/core/component/tool/builtin_tools.py

@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from pydantic import BaseModel
+from volcenginesdkarkruntime._models import BaseModel
 
 from arkitect.core.client.http import default_ark_client