deps: update ksp monorepo to v2.1.21-2.0.1

Author: renovate[bot]

gradle/libs.versions.toml

@@ -9,7 +9,7 @@ graalVmNativeImagePlugin = "0.10.6"
 ideaExtPlugin = "1.1.10"
 jakartaMigrationPlugin = "0.24.0"
 kotlinPlugin = "2.1.21"
-ksp = "2.1.20-2.0.1"
+ksp = "2.1.21-2.0.1"
 mavenPublishPlugin = "0.31.0"
 reproducibleBuildsPlugin = "1.0"