CompatHelper: bump compat for "Distributions" to "0.25"

Author: github-actions[bot]

Project.toml

@@ -19,7 +19,7 @@ Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 [compat]
 CSV = "0.8"
 DataFrames = "0.22, 1.0"
-Distributions = "0.24"
+Distributions = "0.24, 0.25"
 JSON = "0.21"
 StanSample = "3.0"
 StatsFuns = "0.9"