Update kotlinx.atomicfu to v0.23.1

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
org.jetbrains.kotlinx:atomicfu-gradle-plugin	0.23.0 -> 0.23.1
org.jetbrains.kotlinx:atomicfu	0.23.0 -> 0.23.1

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Release Notes

Kotlin/kotlinx.atomicfu (org.jetbrains.kotlinx:atomicfu-gradle-plugin)

### [`v0.23.1`](https://togithub.com/Kotlin/kotlinx.atomicfu/blob/HEAD/CHANGES.md#Version-0231) [Compare Source](https://togithub.com/Kotlin/kotlinx.atomicfu/compare/0.23.0...0.23.1) - Updated Kotlin to 1.9.21 ([#​361](https://togithub.com/Kotlin/kotlinx.atomicfu/issues/361)). - Update to Kotlin 1.9.21 fixes regression with klib incompatibility ([#​365](https://togithub.com/Kotlin/kotlinx.atomicfu/issues/365)).

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