SystemTests: shuffle tests

honestly, i think this might be annoying, especially if you try
to run the tests locally to reproduce an issue and the order keeps
changing.

Author: katrinafyi

src/test/scala/SystemTests.scala

@@ -52,7 +52,7 @@ trait SystemTests extends AnyFunSuite, BASILTest {
 
   def runTests(folder: String, conf: TestConfig): Unit = {
     val path = testPath + folder
-    val programs = getSubdirectories(path)
+    val programs = scala.util.Random.shuffle(getSubdirectories(path))
 
     // get all variations of each program
     val testSuffix = if conf.useBAPFrontend then ":BAP" else ":GTIRB"