🟩🟩 OBJECTIVE FEAT: Introduce governance VAA to update the slashing params.

[jonathanpberger]

[joelsmith-2019]

Started research & development. Looked at GuardianSetUpdate as an example for how to handle governance VAAs within the wormhole module.

[joelsmith-2019]

Waiting on the v3.0.0 upgrade before opening this pull request.

ETA ~ Early January 2025