Bump atomicfu to v0.23.1

[renovate]

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

Compare Source

• Updated Kotlin to 1.9.21 (#​361).
• Update to Kotlin 1.9.21 fixes regression with klib incompatibility (#​365).

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