Update plugin ksp to v2.1.21-2.0.1

Author: renovate[bot]

gradle/libs.versions.toml

@@ -26,7 +26,7 @@ dagger = { id = "com.google.dagger.hilt.android", version.ref = "dagger" }
 dexcount = { id = "com.getkeepsafe.dexcount", version = "4.0.0" }
 kotlin-android = { id = "org.jetbrains.kotlin.android", version.ref = "kotlin" }
 kotlin-compose = { id = "org.jetbrains.kotlin.plugin.compose", version.ref = "kotlin" }
-ksp = { id = "com.google.devtools.ksp", version = "2.1.20-2.0.1" }
+ksp = { id = "com.google.devtools.ksp", version = "2.1.21-2.0.1" }
 ktlint = { id = "org.jlleitschuh.gradle.ktlint", version = "12.2.0" }
 license = { id = "com.jaredsburrows.license", version = "0.9.8" }
 publish = { id = "com.github.triplet.play", version = "3.12.1" }