Bump kotlin from 2.0.0-Beta1 to 2.0.0-Beta4

Bumps `kotlin` from 2.0.0-Beta1 to 2.0.0-Beta4.

Updates `org.jetbrains.kotlin.android` from 2.0.0-Beta1 to 2.0.0-Beta4
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/v2.0.0-Beta4/ChangeLog.md)
- [Commits](JetBrains/kotlin@v2.0.0-Beta1...v2.0.0-Beta4)

Updates `org.jetbrains.kotlin.multiplatform` from 2.0.0-Beta1 to 2.0.0-Beta4
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/v2.0.0-Beta4/ChangeLog.md)
- [Commits](JetBrains/kotlin@v2.0.0-Beta1...v2.0.0-Beta4)

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

Signed-off-by: dependabot[bot] <[email protected]>

gradle/libs.versions.toml

@@ -1,5 +1,5 @@
 [versions]
-kotlin = "2.0.0-Beta1"
+kotlin = "2.0.0-Beta4"
 agp = "8.3.0"
 compose = "1.6.0-alpha01"
 ktor = "3.2.0"