Merge pull request #487 from pyamsoft/dependabot/gradle/kotlin-2.2.21

Author: pyamsoft

gradle/libs.versions.toml

@@ -4,7 +4,7 @@ agp = "8.13.0"
 cacheFix = "3.0.2"
 
 # Kotlin
-kotlin = "2.2.20"
+kotlin = "2.2.21"
 coroutines = "1.10.2"
 dokka = "2.1.0"
 binaryValidator = "0.18.1"