upgrade Kotlin to 1.4.0

buildSrc/src/main/java/Config.kt

@@ -1,5 +1,5 @@
 object Config {
-    val kotlinVersion = "1.3.72"
+    val kotlinVersion = "1.4.0"
     val kotlinStdLib = "stdlib-jdk8"
 
     object BuildPlugins {

sentry-android-core/build.gradle.kts

@@ -64,6 +64,11 @@ android {
         // We run a full lint analysis as build part in CI, so skip vital checks for assemble tasks.
         isCheckReleaseBuilds = false
     }
+
+    // needed because of Kotlin 1.4.x
+    configurations.all {
+        resolutionStrategy.force(Config.CompileOnly.jetbrainsAnnotations)
+    }
 }
 
 dependencies {

sentry-android-ndk/build.gradle.kts

@@ -92,6 +92,11 @@ android {
     nativeBundleExport {
         headerDir = "${project.projectDir}/$sentryNativeSrc/include"
     }
+
+    // needed because of Kotlin 1.4.x
+    configurations.all {
+        resolutionStrategy.force(Config.CompileOnly.jetbrainsAnnotations)
+    }
 }
 
 dependencies {