chore(master): release 0.14.0

[tomshaw]

🤖 I have created a release beep boop

0.14.0 (2026-06-12)

Features

• add strict types declaration across multiple files (48536be)
• enhance Gmail attachment handling with streamed uploads and MIME message improvements (7bde803)
• enhance type declarations and nullability in GoogleMail and GoogleApiServiceProvider (26df8a9)
• enhance type safety and error handling across multiple classes, improve message building in GoogleMail, and update PHPStan configuration (8a856b9)
• implement user-scoped storage and enhance access token management with enums (bbfed82)
• update composer dependencies, enhance PHPStan level, and improve GoogleMail attachment handling (3375847)
• update type declarations and improve nullability across multiple files (2f8e84d)

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[tomshaw]

🤖 Created releases:

• v0.14.0

🌻