build: upgrade Kotlin 2.1.0 & KTXS-lib 1.8.0

Author: iseki0

gradle/libs.versions.toml

@@ -1,6 +1,6 @@
 [versions]
-kotlin = "2.0.0"
-kotlinx-serialization-library = "1.5.1"
+kotlin = "2.1.0"
+kotlinx-serialization-library = "1.8.0"
 [libraries]
 # Kotlinx Serialization
 kotlinx-serialization-core = { module = "org.jetbrains.kotlinx:kotlinx-serialization-core", version.ref = "kotlinx-serialization-library" }
@@ -10,4 +10,4 @@ kotlinx-serialization-json = { module = "org.jetbrains.kotlinx:kotlinx-serializa
 kotlin = { id = "org.jetbrains.kotlin.multiplatform", version.ref = "kotlin" }
 kotlin-serialization = { id = "org.jetbrains.kotlin.plugin.serialization", version.ref = "kotlin" }
 kotlinx-kover = { id = "org.jetbrains.kotlinx.kover", version = "0.7.6" }
-kotlinx-binary-compatibility-validator = "org.jetbrains.kotlinx.binary-compatibility-validator:0.14.0"
+kotlinx-binary-compatibility-validator = "org.jetbrains.kotlinx.binary-compatibility-validator:0.17.0"