Bump org.jetbrains.kotlin.android from 2.0.20 to 2.0.21

Bumps [org.jetbrains.kotlin.android](https://github.com/JetBrains/kotlin) from 2.0.20 to 2.0.21.
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/v2.0.21/ChangeLog.md)
- [Commits](JetBrains/kotlin@v2.0.20...v2.0.21)

---
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

@@ -19,7 +19,7 @@ gson = "2.11.0"
 hilt = "2.52"
 junit = "1.2.1"
 junitJupiter = "5.11.2"
-kotlin = "2.0.20"
+kotlin = "2.0.21"
 kxml2 = "2.3.0"
 legacySupportV4 = "1.0.0"
 library = "1.0.19"