Update Kotlin core dependencies to v2.2.20

Author: renovate[bot]

buildSrc/build.gradle.kts

@@ -8,7 +8,7 @@ repositories {
 
 dependencies {
     // this hack prevents the following bug: https://github.com/gradle/gradle/issues/9770
-    implementation("org.jetbrains.kotlin:kotlin-gradle-plugin:2.2.0")
+    implementation("org.jetbrains.kotlin:kotlin-gradle-plugin:2.2.20")
 
     implementation("org.cqfn.diktat:diktat-gradle-plugin:1.2.5")
     implementation("io.gitlab.arturbosch.detekt:detekt-gradle-plugin:1.23.8")

buildSrc/src/main/kotlin/com/akuleshov7/Versions.kt

@@ -5,7 +5,7 @@
 )
 
 object Versions {
-    const val KOTLIN = "2.2.0"
+    const val KOTLIN = "2.2.20"
     const val JUNIT = "5.7.1"
     const val OKIO = "3.16.0"
     const val SERIALIZATION = "1.9.0"