fix: resolve naming conflict with Foundation's Expression type

[CrazyFanFan]

This commit resolves a naming conflict caused by the introduction of a new Expression type in the Foundation framework. By creating a private typealias for Expression that explicitly refers to SQLite.Expression, we ensure that our usage remains clear and unambiguous throughout the project.

[rafaelclaycon]

Respectfully raising awareness about this very simple fix/issue. It blocks building with Xcode 16.0 Beta and would be great to have merged soon.

[brzzdev]

@garriguv Any chance of getting this merged, please?

[xiushaomin]

@garriguv Please fix it as soon as possible.

[rafaelclaycon]

Up

[garriguv]

Thank you for the contribution