Update xml.serialization.version to v0.86.2 (#9939)

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

gradle/kotlinx.versions.toml

@@ -1,7 +1,7 @@
 [versions]
 kotlin_version = "1.9.10"
 serialization_version = "1.6.0"
-xml_serialization_version = "0.86.1"
+xml_serialization_version = "0.86.2"
 
 [libraries]
 reflect = { module = "org.jetbrains.kotlin:kotlin-reflect", version.ref = "kotlin_version" }