Bump org.jetbrains.kotlin.android from 1.9.10 to 1.9.21

Bumps [org.jetbrains.kotlin.android](https://github.com/JetBrains/kotlin) from 1.9.10 to 1.9.21.
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](JetBrains/kotlin@v1.9.10...v1.9.21)

---
updated-dependencies:
- dependency-name: org.jetbrains.kotlin.android
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

gradle/libs.versions.toml

@@ -3,7 +3,7 @@ androidGradlePluginVersion = "8.0.2"
 androidxComposeBomVersion = "2023.10.01"
 androidxComposeCompilerVersion = "1.5.3"
 androidxCoreKtxVersion = "1.12.0"
-jetbrainsKotlinVersion = "1.9.10"
+jetbrainsKotlinVersion = "1.9.21"
 junitVersion = "4.13.2"
 yasanSpineVersion = "4.3.1"