Update multiplatformSettings to v1.2.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
com.russhwolf:multiplatform-settings-coroutines	1.1.1 -> 1.2.0
com.russhwolf:multiplatform-settings-serialization	1.1.1 -> 1.2.0
com.russhwolf:multiplatform-settings	1.1.1 -> 1.2.0

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Release Notes

russhwolf/multiplatform-settings (com.russhwolf:multiplatform-settings-coroutines)

v1.2.0

• Update to Kotlin 2.0.0, Gradle 8.7, and Android Gradle Plugin 8.3.2
• Add alternative APIs to multiplatform-settings-serialization that don't require manually passing a serializer (
  #​172). Thanks for contributions by @​findusl
• New experimental module multiplatform-settings-make-observable to convert non-observable settings to observable by
  wiring in callbacks when platform observability APIs don't exist (#​155, #​184). Thanks for contributions by @​psuzn.
• Add all supported targets to multiplatform-settings-coroutines and multiplatform-settings-serialization, including
  wasmJs.
• Add additional targets to multiplatform-settings-datastore based on multiplatform Datastore version 1.1.0
• Add wasmWasi support to multiplatform-settings, multiplatform-settings-test, and
  multiplatform-settings-make-observable.
• Add Stateflow analogs to existing Flow extensions in multiplatform-settings-coroutines. (#​156)
• Make SettingsInitializer public so it's easier to configure custom android.startup initialization or write tests
  when using multiplatform-settings-no-arg
• Adjust KeychainSettings to avoid duplicated authentication requests (#​193). Thanks for contributions by @​crysxd
• Modernize gradle and publication config. This shouldn't impact consumers, but please file an issue if you notice
  anything missing.

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