Update pyproject.toml, add audiotools req (#997)

pyproject.toml

@@ -45,7 +45,8 @@ dependencies = [
     "tiktoken>=0.8.0",
     "pydantic==2.9.2",
     "cachetools",
-    "descript-audio-codec"
+    "descript-audio-codec",
+    "descript-audiotools"
 ]
 
 [project.optional-dependencies]