chore(core-deps): update dependency org.jetbrains.kotlinx:kotlinx-serialization-json to v1.8.1

Author: renovate[bot]

gradle/libs.versions.toml

@@ -13,7 +13,7 @@ kotest-junit5 = { module = "io.kotest:kotest-runner-junit5", version.ref = "kote
 kotest-assertions-core = { module = "io.kotest:kotest-assertions-core", version.ref = "kotest" }
 kotest-assertions-core-jvm = { module = "io.kotest:kotest-assertions-core-jvm", version.ref = "kotest" }
 kotest-assertions-ktor = { module = "io.kotest.extensions:kotest-assertions-ktor", version = "2.0.0" }
-kotlin-serialization-json = { module = "org.jetbrains.kotlinx:kotlinx-serialization-json", version = "1.6.2" }
+kotlin-serialization-json = { module = "org.jetbrains.kotlinx:kotlinx-serialization-json", version = "1.8.1" }
 ktor-client-content-negotiation = { module = "io.ktor:ktor-client-content-negotiation", version.ref = "ktor" }
 ktor-client-core = { module = "io.ktor:ktor-client-core", version.ref = "ktor" }
 ktor-client-engine-okhttp = { module = "io.ktor:ktor-client-okhttp", version.ref = "ktor" }