chore(core-deps): update dependency org.jetbrains.kotlin.jvm to v2.2.21 (#1081)

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

Author: renovate[bot]

gradle/libs.versions.toml

@@ -1,6 +1,6 @@
 [versions]
 dokka = "2.0.0"
-kotlin = "2.2.20"
+kotlin = "2.2.21"
 kotest = "6.0.4"
 spock = "2.3-groovy-4.0"