Update Kotlin version in samples and Dockerfile

1.3.40-dev-1480 for samples.
1.3.30 for the Dockerfile (it reflects the latest K/N release).

samples/androidNativeActivity/gradle.properties

@@ -5,7 +5,8 @@ org.gradle.parallel=true
 org.gradle.workers.max=4
 
 # Pin Kotlin version:
-kotlin_version=1.3.30-eap-113
+# CHANGE_VERSION_WITH_RELEASE
+kotlin_version=1.3.40-dev-1480
 
 # Use custom Kotlin/Native home:
 org.jetbrains.kotlin.native.home=../../dist

samples/calculator/gradle.properties

@@ -5,7 +5,8 @@ org.gradle.parallel=true
 org.gradle.workers.max=4
 
 # Pin Kotlin version:
-kotlin_version=1.3.30-eap-113
+# CHANGE_VERSION_WITH_RELEASE
+kotlin_version=1.3.40-dev-1480
 
 # Use custom Kotlin/Native home:
 org.jetbrains.kotlin.native.home=../../../dist

samples/cocoapods/kotlin-library/gradle.properties

@@ -5,7 +5,8 @@ org.gradle.parallel=true
 org.gradle.workers.max=4
 
 # Pin Kotlin version:
-kotlin_version=1.3.30-eap-113
+# CHANGE_VERSION_WITH_RELEASE
+kotlin_version=1.3.40-dev-1480
 
 # Use custom Kotlin/Native home:
 org.jetbrains.kotlin.native.home=../../../dist

samples/gradle.properties

@@ -4,6 +4,7 @@ kotlin.code.style=official
 org.gradle.parallel=true
 
 # Pin Kotlin version:
+# CHANGE_VERSION_WITH_RELEASE
 kotlin_version=1.3.40-dev-1480
 
 # Use custom Kotlin/Native home:

tools/docker/kotlin-native-distributive/build.gradle.kts

@@ -1,5 +1,6 @@
 plugins {
-    kotlin("multiplatform") version "1.3.20"
+    // CHANGE_VERSION_WITH_RELEASE
+    kotlin("multiplatform") version "1.3.30"
 }
 
 kotlin {