System sets do not share their configuration across schedules

## Bevy version

0.11

## What you did

1. Create a system set `MySystemSet`.
2. Give it some configuration using `configure_set(Update, MySystemSet)`.
3. Add some systems in both the `Update` schedule and another schedule to this set.

## What went wrong

The configuration is silently missing for systems in other schedules.

If a system set defines a set of behaviors (like running in a certain state), then I would expect that behavior to be true across schedules (where possible).

## Additional information

The fact that this will happen is thankfully much clearer now that we require explicit schedules everywhere, but it's still a nuisance and a footgun.