Bump classloader-cache test to scala 2.12.8

These were written before we upgraded scala in the develop branch. I'm
not doing this as a fixup to keep the PR clean.

sbt/src/sbt-test/classloader-cache/akka-actor-system/build.sbt

@@ -1,6 +1,6 @@
 val akkaTest = (project in file(".")).settings(
   name := "akka-test",
-  scalaVersion := "2.12.7",
+  scalaVersion := "2.12.8",
   libraryDependencies ++= Seq(
     "com.typesafe.akka" %% "akka-actor" % "2.5.16",
     "com.lihaoyi" %% "utest" % "0.6.6" % "test"

sbt/src/sbt-test/classloader-cache/jni/build.sbt

@@ -11,7 +11,7 @@ def wrap(task: InputKey[Unit]): Def.Initialize[Task[Unit]] =
   Def.sequential(appendToLibraryPath, task.toTask(""), dropLibraryPath)
 
 val root = (project in file(".")).settings(
-  scalaVersion := "2.12.7",
+  scalaVersion := "2.12.8",
   javacOptions ++= Seq("-source", "1.8", "-target", "1.8", "-h",
   sourceDirectory.value.toPath.resolve("main/native/include").toString),
   libraryDependencies += "com.lihaoyi" %% "utest" % "0.6.6" % "test",

sbt/src/sbt-test/classloader-cache/library-mismatch/build.sbt

@@ -1,6 +1,6 @@
 val snapshot = (project in file(".")).settings(
   name := "mismatched-libraries",
-  scalaVersion := "2.12.7",
+  scalaVersion := "2.12.8",
   libraryDependencies ++= Seq("com.lihaoyi" %% "utest" % "0.6.6" % "test"),
   testFrameworks := Seq(TestFramework("utest.runner.Framework")),
   resolvers += "Local Maven" at file("libraries/ivy").toURI.toURL.toString,

sbt/src/sbt-test/classloader-cache/snapshot/build.sbt

@@ -6,7 +6,7 @@ val rewriteIvy = inputKey[Unit]("Rewrite ivy directory")
 
 val snapshot = (project in file(".")).settings(
   name := "akka-test",
-  scalaVersion := "2.12.7",
+  scalaVersion := "2.12.8",
   libraryDependencies ++= Seq(
     "com.lihaoyi" %% "utest" % "0.6.6" % "test"
   ),

sbt/src/sbt-test/classloader-cache/snapshot/libraries/library-1/ivy/sbt/foo-lib_2.12/0.1.0-SNAPSHOT/foo-lib_2.12-0.1.0-SNAPSHOT.pom

@@ -14,7 +14,7 @@
         <dependency>
             <groupId>org.scala-lang</groupId>
             <artifactId>scala-library</artifactId>
-            <version>2.12.7</version>
+            <version>2.12.8</version>
         </dependency>
     </dependencies>
 </project>

sbt/src/sbt-test/classloader-cache/snapshot/libraries/library-2/ivy/sbt/foo-lib_2.12/0.1.0-SNAPSHOT/foo-lib_2.12-0.1.0-SNAPSHOT.pom

@@ -14,7 +14,7 @@
         <dependency>
             <groupId>org.scala-lang</groupId>
             <artifactId>scala-library</artifactId>
-            <version>2.12.7</version>
+            <version>2.12.8</version>
         </dependency>
     </dependencies>
 </project>

sbt/src/sbt-test/classloader-cache/utest/build.sbt

@@ -1,6 +1,6 @@
 val utestTest = (project in file(".")).settings(
   name := "utest-test",
-  scalaVersion := "2.12.7",
+  scalaVersion := "2.12.8",
   libraryDependencies ++= Seq(
     "com.lihaoyi" %% "utest" % "0.6.6" % "test"
   ),