gradle: Supress useless warning about iOS targets being disabled

Its common knowledge that you need apple machines to develop for apple devices

Signed-off-by: Aayush Gupta <contact@aayush.io>

gradle.properties

@@ -3,3 +3,6 @@ systemProp.file.encoding=utf-8
 
 # https://docs.gradle.org/current/userguide/configuration_cache.html
 org.gradle.configuration-cache=true
+
+# https://kotlinlang.org/docs/native-target-support.html
+kotlin.native.ignoreDisabledTargets=true