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

Author: renovate[bot]

gradle/libs.versions.toml

@@ -8,7 +8,7 @@ kover = "0.9.0"
 benchmark = "0.4.13"
 atomicfu = "0.26.1"
 immutable = "0.3.8"
-serialization = "1.7.3"
+serialization = "1.8.1"
 
 [libraries]
 kotlin-stdlib = { module = "org.jetbrains.kotlin:kotlin-stdlib", version.ref = "kotlin" }