Update cli-tests_2.12, coursier-cli_2.12 to 2.1.7

Author: scala-steward

build.sc

@@ -11,7 +11,7 @@ import mill.scalalib._
 import scala.util.Properties
 
 def scalaDefaultVersion = "2.12.18"
-def coursierVersion     = "2.1.6"
+def coursierVersion     = "2.1.7"
 def graalVmVersion      = "22.1.0"
 def utestVersion        = "0.8.1"