Bump kotlin from 2.3.21 to 2.4.0

Bumps `kotlin` from 2.3.21 to 2.4.0.

Updates `org.jetbrains.kotlin.android` from 2.3.21 to 2.4.0
- [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/v2.3.21...v2.4.0)

Updates `org.jetbrains.kotlin.plugin.compose` from 2.3.21 to 2.4.0
- [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/v2.3.21...v2.4.0)

---
updated-dependencies:
- dependency-name: org.jetbrains.kotlin.android
  dependency-version: 2.4.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: org.jetbrains.kotlin.plugin.compose
  dependency-version: 2.4.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

gradle/libs.versions.toml

@@ -1,7 +1,7 @@
 [versions]
 # AndroidX
 compose = "2026.05.01"
-kotlin = "2.3.21"
+kotlin = "2.4.0"
 
 # Third-party
 acra = "5.13.1"