chore: update allowed unresolved imports and add type ignore comment

- Added "cloudpickle.**" and "datasets.**" to the allowed unresolved imports in pyproject.toml.
- Added a type ignore comment to the return statement in trajectories.py for better type checking compliance.

Author: bradhilton

pyproject.toml

@@ -132,6 +132,8 @@ allowed-unresolved-imports = [
     "accelerate.**",
     "awscli.**",
     "bitsandbytes.**",
+    "cloudpickle.**",
+    "datasets.**",
     "duckdb.**",
     "fastapi.**",
     "gql.**",

src/art/trajectories.py

@@ -308,7 +308,7 @@ def __await__(self):
                     return self.coro.__await__()
 
             coro = _(exceptions.copy(), metadata, metrics, logs)
-            return CoroutineWithMetadata(coro, len(ts))
+            return CoroutineWithMetadata(coro, len(ts))  # type: ignore[return-value]
         else:
             group = super().__new__(cls)
             group.__init__(