Use Kotlin 1.3.71

Author: ligi

buildSrc/src/main/kotlin/Versions.kt

@@ -1,5 +1,5 @@
 object Versions {
-    const val kotlin = "1.3.50"
+    const val kotlin = "1.3.71"
     const val versions_plugin = "0.27.0"
     const val jupiter = "5.2.0"
 }