Bump org.jetbrains.kotlin.android from 2.2.10 to 2.2.21

Bumps [org.jetbrains.kotlin.android](https://github.com/JetBrains/kotlin) from 2.2.10 to 2.2.21.
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/v2.2.21/ChangeLog.md)
- [Commits](https://github.com/JetBrains/kotlin/compare/v2.2.10...v2.2.21)

---
updated-dependencies:
- dependency-name: org.jetbrains.kotlin.android
  dependency-version: 2.2.21
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

gradle/libs.versions.toml

@@ -1,6 +1,6 @@
 [versions]
 agp = "8.11.0"
-kotlin = "2.2.10"
+kotlin = "2.2.21"
 
 [plugins]
 android-application = { id = "com.android.application", version.ref = "agp" }