Update dependency org.jetbrains.kotlin:kotlin-compiler to v2.2.21

Author: renovate[bot]

gradle/libs.versions.toml

@@ -3,7 +3,7 @@ kotlin = "2.2.21" # Used for the code of the rules
 ktlint = "1.8.0"
 kotlin-ktlint = "2.2.21" # Update only when ktlint version updates
 detekt = "2.0.0-alpha.1"
-kotlin-detekt = "2.2.20" # Update only when detekt version updates
+kotlin-detekt = "2.2.21" # Update only when detekt version updates
 junit = "5.14.1"
 junit-platform = "1.14.1"