chore(deps): update kotlin to v2.3.21-rc2

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
org.jetbrains.kotlin.plugin.serialization (source)	2.3.21-RC → 2.3.21-RC2
org.jetbrains.kotlin.plugin.parcelize (source)	2.3.21-RC → 2.3.21-RC2
org.jetbrains.kotlin.multiplatform (source)	2.3.21-RC → 2.3.21-RC2
org.jetbrains.kotlin.jvm (source)	2.3.21-RC → 2.3.21-RC2
org.jetbrains.kotlin.android (source)	2.3.21-RC → 2.3.21-RC2
org.jetbrains.kotlin.plugin.compose (source)	2.3.21-RC → 2.3.21-RC2
org.jetbrains.kotlin.plugin.serialization:org.jetbrains.kotlin.plugin.serialization.gradle.plugin (source)	2.3.21-RC → 2.3.21-RC2
org.jetbrains.kotlin:compose-compiler-gradle-plugin (source)	2.3.21-RC → 2.3.21-RC2
org.jetbrains.kotlin:kotlin-gradle-plugin (source)	2.3.21-RC → 2.3.21-RC2

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Release Notes

JetBrains/kotlin (org.jetbrains.kotlin.plugin.serialization)

v2.3.21-RC2: Kotlin 2.3.21-RC2

Changelog

Compiler

• KT-85626 @JvmRecord in commonMain breaks compileCommonMainKotlinMetadata with "Cannot access 'java.lang.Record'"

Native. C and ObjC Import

• KT-85508 K/N: TypeCastException when using nw_parameters_create_secure_tcp block parameter on 2.3.20

Tools. Scripts

• KT-85105 Scripts: JVM backend internal error (IR lowering) when scratch file contains anonymous object
• KT-85103 Exception while generating code when explain destructuring decls

Tools. Statistics (FUS)

• KT-85628 KGP: composite build FUS metrics fail on access of 'configurationTimeMetrics'

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