build(deps): bump kotlinx-io from 0.4.0 to 0.5.1

Bumps `kotlinx-io` from 0.4.0 to 0.5.1.

Updates `org.jetbrains.kotlinx:kotlinx-io-core` from 0.4.0 to 0.5.1
- [Release notes](https://github.com/Kotlin/kotlinx-io/releases)
- [Changelog](https://github.com/Kotlin/kotlinx-io/blob/master/CHANGELOG.md)
- [Commits](Kotlin/kotlinx-io@0.4.0...0.5.1)

Updates `org.jetbrains.kotlinx:kotlinx-io-bytestring` from 0.4.0 to 0.5.1
- [Release notes](https://github.com/Kotlin/kotlinx-io/releases)
- [Changelog](https://github.com/Kotlin/kotlinx-io/blob/master/CHANGELOG.md)
- [Commits](Kotlin/kotlinx-io@0.4.0...0.5.1)

---
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

@@ -33,7 +33,7 @@ okio = "3.9.0"
 
 # https://github.com/Kotlin/kotlinx-io/releases
 # https://mvnrepository.com/artifact/org.jetbrains.kotlinx/kotlinx-io-core
-kotlinx-io = "0.4.0"
+kotlinx-io = "0.5.1"
 
 # Android Plugin for Gradle.
 # Note: R8 version can be updated independently in settings.gradle.kts