Update kotlinx.serialization to v1.7.1

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
org.jetbrains.kotlinx:kotlinx-serialization-json	1.7.0 -> 1.7.1
org.jetbrains.kotlinx:kotlinx-serialization-core	1.7.0 -> 1.7.1

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Release Notes

Kotlin/kotlinx.serialization (org.jetbrains.kotlinx:kotlinx-serialization-json)

### [`v1.7.1`](https://togithub.com/Kotlin/kotlinx.serialization/compare/v1.7.0...v1.7.1)

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