inherit FiberRef's when a failed fiber joins

[vagroz]

I faced with a problem similar to #8721

Fiber#join doesn't inherit FiberRef values if the fiber was failed.

For example:

val ref: FiberRef[Set[String]] =
    Unsafe.unsafe(implicit unsafe => FiberRef.unsafe.make[Set[String]](Set.empty, join = _ ++ _))

  def request(system: String, fail: Boolean): Task[Unit] = for {
    _ <- ref.update(_ + system)
    _ <- ZIO.fail(new IllegalStateException("Booom!")).when(fail)
  } yield ()

  override val run =
    for {
      f    <- request("foo", fail = true).fork
      _    <- request("bar", fail = false)
      _ <- f.join.ignore
      data <- ref.get
      _    <- Console.printLine(s"Completed: $data")
    } yield ()

prints just bar, but

 for {
      _    <- request("foo", fail = true).ignore
      _    <- request("bar", fail = false)
      data <- ref.get
      _    <- Console.printLine(s"Completed: $data")
    } yield ()

prints foo, bar.

I expected these snippets to work the same way.
The same expectation is about ZIO#disconnected:

_ <- request("disconnected", fail = true).disconnect.ignore

Now this discards FiberRef updates bacause uses .join under the hood.

If this behavior must be corrected, I will be glad if my PR is approved