Update dependency kotlinx-serialization to v1.8.1 (#4776)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

gradle/libs.versions.toml

@@ -6,7 +6,7 @@ kotlinx-datetime = "0.6.2"
 kotlinx-io = "0.7.0"
 coroutines = "1.10.1"
 atomicfu = "0.27.0"
-serialization = "1.8.0"
+serialization = "1.8.1"
 binaryCompatibilityValidator = "0.17.0"
 dokka = "2.0.0"
 kover = "0.9.1"