Bump kotlin from 2.1.10 to 2.1.20

Bumps `kotlin` from 2.1.10 to 2.1.20.

Updates `org.jetbrains.kotlin.android` from 2.1.10 to 2.1.20
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](https://github.com/JetBrains/kotlin/compare/v2.1.10...v2.1.20)

Updates `org.jetbrains.kotlin.plugin.compose` from 2.1.10 to 2.1.20
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](https://github.com/JetBrains/kotlin/compare/v2.1.10...v2.1.20)

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

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

gradle/libs.versions.toml

@@ -1,7 +1,7 @@
 [versions]
 agp = "8.8.2"
 desugar_jdk_libs = "2.1.5"
-kotlin = "2.1.10"
+kotlin = "2.1.20"
 coreKtx = "1.15.0"
 junit = "4.13.2"
 junitVersion = "1.2.1"