Updated information for new dataset

Author: github-actions[bot]

agml/_assets/public_datasources.json

@@ -1217,6 +1217,18 @@
         "annotation_format": "image",
         "n_images": "2500",
         "docs_url": "https://github.com/Project-AgML/AgML/blob/main/docs/datasets/bean_synthetic_earlygrowth_aerial.md",
-        "external_image_sources": []
+        "external_image_sources": [],
+        "stats": {
+            "mean": [
+                0.24804328382015228,
+                0.22181934118270874,
+                0.16611835360527039
+            ],
+            "std": [
+                0.10789015144109726,
+                0.12054642289876938,
+                0.08992251008749008
+            ]
+        }
     }
 }