Update munit to 1.3.1

Author: typelevel-steward[bot]

build.sbt

@@ -5,7 +5,7 @@ val enumeratumVersion = "1.9.7"
 val jacksonVersion = "2.21.3"
 val magnolia2Version = "0.17.0"
 val magnolia3Version = "1.3.20"
-val munitVersion = "1.3.0"
+val munitVersion = "1.3.1"
 val munitScalaCheckVersion = "1.3.0"
 val refinedVersion = "0.11.3"
 val scalaCollectionCompatVersion = "2.14.0"