Cats' ConcurrentEffect[F] requires a Timer[F].
There was in our catz interop an implicit def ioTimer that returned a Timer[Task].

With the new ZIO Environment, ioTimer is defined as below:

implicit def ioTimer[R <: Clock, E]: effect.Timer[ZIO[R, E, ?]] = new effect.Timer[ZIO[R, E, ?]]

It returns a Timer[ZIO[R, E, ?] with R <: Clock, but this doesn't match the definition of Task.

Shall we use Clock.Live directly instead of relying on an environment here? Or require an implicit parameter Clock as it was before? Any other suggestion?