build(deps): bump org.jetbrains.androidx.navigation:navigation-compose (#55)

Bumps [org.jetbrains.androidx.navigation:navigation-compose](https://github.com/JetBrains/compose-jb) from 2.8.0-alpha13 to 2.9.0-alpha15.
- [Release notes](https://github.com/JetBrains/compose-jb/releases)
- [Changelog](https://github.com/JetBrains/compose-multiplatform/blob/master/CHANGELOG.md)
- [Commits](https://github.com/JetBrains/compose-jb/commits)

---
updated-dependencies:
- dependency-name: org.jetbrains.androidx.navigation:navigation-compose
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -7,7 +7,7 @@ androidx-activityCompose = "1.9.3"
 storytale = "0.0.3+dev8"
 
 compose-plugin = "1.8.0-alpha03"
-compose-navigation = "2.8.0-alpha13"
+compose-navigation = "2.9.0-alpha15"
 kotlinx-serialization-json = "1.7.3"
 kotlin = "2.1.10"
 kotlin-poet = "1.18.1"