Bump the kotlin-compose group with 2 updates (#224)

Bumps the kotlin-compose group with 2 updates: [org.jetbrains.kotlin.android](https://github.com/JetBrains/kotlin) and [org.jetbrains.kotlin.plugin.compose](https://github.com/JetBrains/kotlin).


Updates `org.jetbrains.kotlin.android` from 2.1.20 to 2.1.21
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](JetBrains/kotlin@v2.1.20...v2.1.21)

Updates `org.jetbrains.kotlin.plugin.compose` from 2.1.20 to 2.1.21
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](JetBrains/kotlin@v2.1.20...v2.1.21)

---
updated-dependencies:
- dependency-name: org.jetbrains.kotlin.android
  dependency-version: 2.1.21
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: kotlin-compose
- dependency-name: org.jetbrains.kotlin.plugin.compose
  dependency-version: 2.1.21
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: kotlin-compose
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -1,6 +1,6 @@
 [versions]
 composeVersion = "1.8.1"
-kotlinVersion = "2.1.20"
+kotlinVersion = "2.1.21"
 
 [libraries]
 android-annotation = "androidx.annotation:annotation:1.9.1"