fix groupby deprecation warning

app.py

@@ -117,10 +117,8 @@ def build_plot(min_score, max_models_per_month, toggle_annotations, set_selector
     filtered_df = df[(df["rating"] >= min_score)]
 
     filtered_df = (
-        filtered_df.groupby(["Month-Year", "License"])
-        .apply(
-            lambda x: x.nlargest(max_models_per_month, "rating"), include_groups=True
-        )
+        filtered_df.groupby(["Month-Year", "License"], group_keys=False)
+        .apply(lambda x: x.nlargest(max_models_per_month, "rating"))
         .reset_index(drop=True)
     )