Update dependency org.jetbrains.kotlinx.binary-compatibility-validator:org.jetbrains.kotlinx.binary-compatibility-validator.gradle.plugin to v0.15.1

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This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
org.jetbrains.kotlinx.binary-compatibility-validator:org.jetbrains.kotlinx.binary-compatibility-validator.gradle.plugin	0.15.0 -> 0.15.1

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Release Notes

Kotlin/binary-compatibility-validator (org.jetbrains.kotlinx.binary-compatibility-validator:org.jetbrains.kotlinx.binary-compatibility-validator.gradle.plugin)

### [`v0.15.1`](https://togithub.com/Kotlin/binary-compatibility-validator/releases/tag/0.15.1) [Compare Source](https://togithub.com/Kotlin/binary-compatibility-validator/compare/0.15.0...0.15.1) ##### What changed: - Fixed a regression introduced in `0.15.0` affecting how enum entries from classes with non-public companions are dumped ([#​250](https://togithub.com/Kotlin/binary-compatibility-validator/issues/250))

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Configuration

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