[Upstream] deal_provider_collateral_bounds improvements.

1. Take a more readable approach for the method.
2. Perhaps introduce that same method for actors v8..v10.

You're welcome to propose a change in the upstream https://github.com/filecoin-project/builtin-actors to address readability.

_Originally posted by @LesnyRumcajs in https://github.com/ChainSafe/fil-actor-states/pull/272#discussion_r1551491575_

Start by locating the deal_provider_collateral_bounds method and reviewing the upstream builtin-actors discussion linked in the issue. Clarify a more readable approach there, then determine whether the same method should be introduced for actors v8 through v10; done means the intended readability improvement and version coverage are agreed and implemented.

Written by the indexing model from the issue text.