Update coursier-jvm_2.13, ... to 2.1.8

Author: scala-steward

project/deps.sc

@@ -80,7 +80,7 @@ object InternalDeps {
 object Deps {
   object Versions {
     // jni-utils version may need to be sync-ed when bumping the coursier version
-    def coursierDefault      = "2.1.7"
+    def coursierDefault      = "2.1.8"
     def coursier             = coursierDefault
     def coursierCli          = coursierDefault
     def coursierM1Cli        = coursierDefault