Require datasets 4.1.0

We previously had an unversioned dependency on datasets, and a recent report
shows that GuideLLM is not compatible with versions of datasets prior to
3.1.0.

Since the "audio" extra already depends on datasets 4.1.0 we know that works
and it seems a reasonable target.

Signed-off-by: David Butenhof <dbutenho@redhat.com>

Author: dbutenhof

pyproject.toml

@@ -52,7 +52,7 @@ keywords = [
 dependencies = [
     "click~=8.3.0",
     "culsans~=0.10.0",
-    "datasets",
+    "datasets>=4.1.0",
     "eval_type_backport",
     "faker",
     "ftfy>=6.0.0",