v2.4.0 of flutter_image_utilities

Image file related utilities for saving an image as JPEG with the specified quality and size and for getting image properties. Changelog excerpt: - [iOS] Raised declared deployment target to 13.0 to match the minimum already required by Flutter 3.44+ - [Android] Bumped Kotlin to 2.3.20, raised minSdk to 24, and modernized the lint/test configuration - [Example] Migrated the iOS example to Swift Package Manager and the UIScene lifecycle; migrated the Android example to Kotlin DSL + AGP 9 / built-in Kotlin - Enabled flutter_lintsvia analysis_options.yaml