Update Kotlin DSL version of teamcity config to v2019_2

Author: Abduqodiri Qurbonzoda

.teamcity/settings.kts

@@ -1,6 +1,6 @@
-import jetbrains.buildServer.configs.kotlin.v2018_2.*
-import jetbrains.buildServer.configs.kotlin.v2018_2.buildSteps.*
-import jetbrains.buildServer.configs.kotlin.v2018_2.triggers.*
+import jetbrains.buildServer.configs.kotlin.v2019_2.*
+import jetbrains.buildServer.configs.kotlin.v2019_2.buildSteps.*
+import jetbrains.buildServer.configs.kotlin.v2019_2.triggers.*
 
 /*
 The settings script is an entry point for defining a TeamCity