Change watchEpochStateUpdate callback type

[carbolymer]

Description

This PR changes watchEpochStateUpdate callback type from a sum type Maybe a to a product (LedgerStateCondition, a), which allows to return from the function, when the condition is not satisfied, but the deadline epoch has been reached.

Checklist

• [ ] Commit sequence broadly makes sense and commits have useful messages
• [ ] New tests are added if needed and existing tests are updated. These may include:
  • golden tests
  • property tests
  • roundtrip tests
  • integration tests See Runnings tests for more details
• [ ] Any changes are noted in the CHANGELOG.md for affected package
• [ ] The version bounds in .cabal files are updated
• [ ] CI passes. See note on CI. The following CI checks are required:
  • [ ] Code is linted with hlint. See .github/workflows/check-hlint.yml to get the hlint version
  • [ ] Code is formatted with stylish-haskell. See .github/workflows/stylish-haskell.yml to get the stylish-haskell version
  • [ ] Code builds on Linux, MacOS and Windows for ghc-8.10.7 and ghc-9.2.7
• [ ] Self-reviewed the diff

Note on CI

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