Revert "chore(deps): update kotlin to v2.1.0" (#527)

Revert "chore(deps): update kotlin to v2.1.0 (#515)"

This reverts commit 063ac97.

Author: Ahoo-Wang

gradle/libs.versions.toml

@@ -14,7 +14,7 @@ jmh = "1.37"
 # plugins
 detekt = "1.23.7"
 dokka = "1.9.20"
-kotlin = "2.1.0"
+kotlin = "2.0.21"
 publishPlugin = "2.0.0"
 jmhPlugin = "0.7.2"
 [libraries]