build(deps): bump org.jetbrains.kotlinx:kotlinx-io-core

Bumps [org.jetbrains.kotlinx:kotlinx-io-core](https://github.com/Kotlin/kotlinx-io) from 0.5.4 to 0.6.0.
- [Release notes](https://github.com/Kotlin/kotlinx-io/releases)
- [Changelog](https://github.com/Kotlin/kotlinx-io/blob/master/CHANGELOG.md)
- [Commits](Kotlin/kotlinx-io@0.5.4...0.6.0)

---
updated-dependencies:
- dependency-name: org.jetbrains.kotlinx:kotlinx-io-core
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

gradle/libs.versions.toml

@@ -2,7 +2,7 @@
 kotlin = "2.0.20"
 kotlinx-coroutines = "1.9.0"
 kotlinx-serialization = "1.7.3"
-kotlinx-io = "0.5.4"
+kotlinx-io = "0.6.0"
 dokka = "1.9.20"
 ktor = "2.3.12"
 openjdk-jmh = "1.37"