Revert some of expecty 0.17.1 workarounds

[Gedochao]

 >==== Running 'diagnostics' from BspTestDefinitions
[913] java.lang.NoClassDefFoundError: ch/epfl/scala/bsp4j/StatusCode$
[913]   at scala.cli.integration.BspTestDefinitions.$init$$$anonfun$7$$anonfun$1$$anonfun$1(BspTestDefinitions.scala:301)
[913]   at scala.cli.integration.BspTestDefinitions.$init$$$anonfun$7$$anonfun$1$$anonfun$adapted$1(BspTestDefinitions.scala:326)
[913]   at scala.concurrent.Future$.$anonfun$apply$1(Future.scala:687)
[913]   at scala.concurrent.impl.Promise$Transformation.run(Promise.scala:467)
[913]   at java.base/java.util.concurrent.ForkJoinTask$RunnableExecuteAction.exec(ForkJoinTask.java:1395)
[913]   at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:373)
[913]   at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1182)
[913]   at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1655)
[913]   at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1622)
[913]   at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:165)
[913] Caused by: java.lang.ClassNotFoundException: ch.epfl.scala.bsp4j.StatusCode$
[913]   at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641)
[913]   at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188)
[913]   at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:520)
[913]   ... 10 more

Despite bumping to expecty 0.17.1, this seems to still be happening.
There's something specific deeper in the Scala CLI integration test build at work, as I can't seem to minimize this anymore.

[Gedochao]

Raised this PR strictly for expecty reproduction's sake

[Gedochao]

It seems this now passes the CI after a rebase.
Not sure what was wrong, but I can no longer reproduce the issue.
I think we should be fine with merging this, since the tests are passing.