fix: remove state sync from migrate

[eakmanrq]

This PR has no logic changes.

Prior to this PR, we would pass state sync into migrations but this was really just done to get the engine adapter and schema out of it. Therefore this PR updates migrations to just require engine adapter and schema.

[Copilot]

Pull Request Overview

This PR removes state sync as a parameter from migration functions and passes engine adapter and schema directly instead. This simplifies the migration interface by only passing the specific components needed rather than the entire state sync object.

Key changes:

• Update migration function signatures to accept engine_adapter and schema parameters instead of state_sync
• Remove extraction of engine adapter and schema from state sync within migration functions
• Update migration caller to pass engine adapter and schema directly

Reviewed Changes

Copilot reviewed 43 out of 43 changed files in this pull request and generated no comments.

File	Description
sqlmesh/migrations/*.py	Updated migration function signatures and removed state sync parameter extraction
sqlmesh/core/state_sync/db/migrator.py	Updated migration caller to pass engine adapter and schema directly
sqlmesh/core/state_sync/db/facade.py	Updated migrate call to pass schema instead of self

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