Update dependency org.jetbrains.kotlinx:kotlinx-serialization-json to v1.8.1

Author: renovate[bot]

gradle.properties

@@ -8,6 +8,6 @@ kotlin.daemon.jvmargs=-Xmx3g -Xms500m
 kotlin_version=2.1.20
 telegram_bot_api_version=25.0.0
 micro_utils_version=0.25.3
-serialization_version=1.8.0
+serialization_version=1.8.1
 ktor_version=3.1.1
 compose_version=1.7.3