Bump plugin.compose from 2.2.20 to 2.3.21

Bumps [plugin.compose](https://github.com/JetBrains/kotlin) from 2.2.20 to 2.3.21.
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](JetBrains/kotlin@v2.2.20...v2.3.21)

---
updated-dependencies:
- dependency-name: plugin.compose
  dependency-version: 2.3.21
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

build.gradle.kts

@@ -2,7 +2,7 @@ import org.jetbrains.kotlin.gradle.dsl.abi.ExperimentalAbiValidation
 
 plugins {
     kotlin("multiplatform") version "2.2.21"
-    kotlin("plugin.compose") version "2.2.20"
+    kotlin("plugin.compose") version "2.3.21"
     id("org.jetbrains.compose") version "1.9.0"
     id("maven-publish")
     id("signing")