Don't trigger ComposeUnstableCollections when unstable collection is used in preview

[carstenhag]

I have something like this in use:

private class ButtonParameter : PreviewParameterProvider<List<Any?>> {
    override val values: Sequence<List<Any?>>
        get() = sequenceOf(
            listOf<Any?>("Very, very long button text that takes two lines", R.drawable.ic_charge, true, false),
            listOf<Any?>("Button", null, true, false),
...

fun ButtonSecondaryPreview(@PreviewParameter(ButtonParameter::class) properties: List<Any?>)

The linter complains about this and in normal code this would be great, but I don't really see the point of changing it in previews. Just takes a bit of time, but it's not time spent effectively apart from making the linter happy.

[ZacSweers]

PR is welcome 👍