Update light_hyper_dict.json

Author: bartzbeielstein

src/spotPython/data/light_hyper_dict.json

@@ -58,7 +58,7 @@
             "default": 0.01,
             "transform": "None",
             "lower": 0.0,
-            "upper": 0.1},
+            "upper": 0.25},
         "lr_mult": {
             "type": "float",
             "default": 1.0,