Bump kotlinx-io from 0.5.4 to 0.6.0

Bumps `kotlinx-io` from 0.5.4 to 0.6.0.

Updates `org.jetbrains.kotlinx:kotlinx-io-core` 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)

Updates `org.jetbrains.kotlinx:kotlinx-io-bytestring` 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
- dependency-name: org.jetbrains.kotlinx:kotlinx-io-bytestring
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

gradle/libs.versions.toml

@@ -23,7 +23,7 @@ jackson = "2.18.1"
 kotlin = "2.0.21"
 kotlinx-atomicfu = "0.25.0"
 kotlinx-coroutines = "1.9.0"
-kotlinx-io = "0.5.4"
+kotlinx-io = "0.6.0"
 kotlinx-serialization = "1.7.3"
 ktor = "2.3.12"
 moshi = "1.15.1"