`fs2.interop.flow.PublisherToSubscriberSpec.should have the same output as input` timeout

773de68f672c4e736bf642e9c30b3d915a8fea82

ubuntu-latest, 3, temurin@17, rootJVM

==> X fs2.interop.flow.PublisherToSubscriberSpec.should have the same output as input  30.004s java.util.concurrent.TimeoutException: test timed out after 30 seconds
    at munit.CatsEffectSuite.munit$CatsEffectSuite$$anon$1$$_$_$$anonfun$2(CatsEffectSuite.scala:78)
    at scala.Option.fold(Option.scala:263)
    at munit.CatsEffectSuite$$anon$1.applyOrElse(CatsEffectSuite.scala:79)
    at scala.PartialFunction$Lifted.apply(PartialFunction.scala:338)
    at scala.PartialFunction$Lifted.apply(PartialFunction.scala:334)
    at munit.ValueTransforms$ValueTransform.apply(ValueTransforms.scala:14)
    at munit.ValueTransforms.$anonfun$2(ValueTransforms.scala:28)
    at scala.collection.Iterator$$anon$9.next(Iterator.scala:584)
    at scala.collection.IterableOnceOps.collectFirst(IterableOnce.scala:1256)
    at scala.collection.IterableOnceOps.collectFirst$(IterableOnce.scala:1248)
    at scala.collection.AbstractIterator.collectFirst(Iterator.scala:1303)
    at munit.ValueTransforms.$anonfun$1(ValueTransforms.scala:29)
    at scala.concurrent.impl.Promise$Transformation.run(Promise.scala:467)
    at unsafeRunSync @ fs2.interop.packageDoctest$$anon$1.$init$$$anonfun$2$$anonfun$1(packageDoctest.scala:36)
    at race$extension @ fs2.Stream.forkOnElem$1$$anonfun$1$$anonfun$1$$anonfun$1(Stream.scala:2364)
    at timeoutTo @ munit.CatsEffectSuite.munit$CatsEffectSuite$$anon$1$$_$_$$anonfun$2(CatsEffectSuite.scala:78)

https://github.com/typelevel/fs2/actions/runs/13727001151/job/38395670558?pr=3539#step:11:2940

cc @BalmungSan

Start with fs2.interop.flow.PublisherToSubscriberSpec and reproduce the timeout from the linked GitHub Actions run on the referenced commit, 773de68f672c4e736bf642e9c30b3d915a8fea82. Trace the PublisherToSubscriberSpec test and its stream execution; done means the test completes within its timeout and produces the same output as its input.