Update munit to 1.0.0 (#620)

Author: scala-steward

build.sbt

@@ -1,7 +1,7 @@
 import sbtcrossproject.CrossProject
 import sbtcrossproject.CrossType
 
-lazy val munitVersion = "1.0.0-RC1"
+lazy val munitVersion = "1.0.0"
 lazy val scalametaVersion = "4.9.3"
 lazy val defaultScala212 = "2.12.19"
 lazy val defaultScala213 = "2.13.14"