[Request]: Investigate how we want to handle timelocks after 2106

### Feature description

Check how we want to handle locks, that exceed the timestamp GMT: Sunday 7 February 2106 06:28:15.

### Motivation

Behavior after the specified date is currently unclear.

### Requirements

We have investigated ways and maybe implemented a way to handle locks after GMT: Sunday 7 February 2106 06:28:15.

### Open questions

Updating the related fields and args from `u32` to `u64` would fix this, but this would be a breaking change.

But on the other hand, depending on other task outcomes, we might also be facing breaking changes already.
So, in case, we're heading for breaking changes already, we could also consider using the way, described above.
If not, we might have to find a workaround for this.

### Are you planning to do it yourself in a pull request?

No