Add fix serailization/deserialization of Policies in compressed transactions to be backward compatible

[AurelienFT]

We changed the compress decompress implementation to not be the default one which would lead to use the default serde implementation for each field. Instead we use a custom implementation that will use the custom serde implementations we have for Policies

Checklist

• Breaking changes are clearly marked as such in the PR description and changelog
• New behavior is reflected in tests
• If performance characteristic of an instruction change, update gas costs as well or make a follow-up PR for that
• The specification matches the implemented behavior (link update PR if changes are needed)

Before requesting review

• I have reviewed the code myself
• I have created follow-up issues caused by this PR and linked them here

[rymnc]

can confirm this fix works. :)