CompatHelper: bump compat for "AbstractTrees" to "0.4" for package ReinforcementLearningBase

Author: github-actions[bot]

src/ReinforcementLearningBase/Project.toml

@@ -13,7 +13,7 @@ Reexport = "189a3867-3050-52da-a836-e630ba90ab69"
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 
 [compat]
-AbstractTrees = "0.3"
+AbstractTrees = "0.3, 0.4"
 CommonRLInterface = "0.3"
 CommonRLSpaces = "0.1"
 Reexport = "1"