🕵️ Is there an existing issue for this?

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Describe the problem

Public API management tool

Describe the solution

• Include org.jetbrains.kotlinx.binary-compatibility-validator
• Run apiCheck task on CI jobs
• Document apiCheck & apiDump tasks in CONTRIBUTING.md

Docs: https://github.com/Kotlin/binary-compatibility-validator

Additional context

No response

Code of Conduct

• I agree to follow this project's Code of Conduct