#10055 chore: Fix types in `meltano.core.plugin.settings_service` Pull request opened by edgarrmondragon SSIA Summary by Sourcery Improve type safety and typing annotations across core utilities, plugin services, and project configuration. Enhancements: • Refine the Expandable type and add overloads for env var expansion utilities to provide more precise return types. • Update plugin- and project-related APIs to use the Canonical type and more accurate type annotations for plugin mappings and settings services. Build: • Adjust type-checker configuration by removing the dedicated module entry for the plugin settings service. meltano/meltano