update compat bounds

Author: tlienart

Project.toml

@@ -19,7 +19,9 @@ Tables = "bd369af6-aec1-5ad0-b16a-f7cc5008161c"
 
 [compat]
 CategoricalArrays = "^0.7"
+Distributions = "^0.21"
 LossFunctions = "^0.5"
+Missings = "^0.4"
 OrderedCollections = "^1.1"
 ScientificTypes = "^0.2"
 StatsBase = "^0.32"