Add support for the ratify-state query

[smelc]

Changelog

- description: |
    Add support for the ratify-state query
# uncomment types applicable to the change:
  type:
  - feature        # introduces a new feature
  # - breaking       # the API has changed in a breaking way
  - compatible     # the API has changed but is non-breaking
  # - optimisation   # measurable performance improvements
  # - refactoring    # QoL changes
  # - bugfix         # fixes a defect
  # - test           # fixes/modifies tests
  # - maintenance    # not directly related to the code
  # - release        # related to a new release preparation
  # - documentation  # change in code docs, haddocks...

Context

• Support the ratify-state query added in consensus: https://github.com/IntersectMBO/ouroboros-consensus/blob/main/ouroboros-consensus-cardano/CHANGELOG.md#01800--2024-08-26
• Required for the corresponding CLI PR: Add the ratify-state query cardano-cli#1036

How to trust this PR

• It's the same boilerplate as e.g. QueryGovState
• Tested with the CLI

Checklist

• Commit sequence broadly makes sense and commits have useful messages
• Self-reviewed the diff