Bump Kotlin/Native version to 1.6.20-dev-7317

Related to #KT-50591
diff --git a/build.gradle.kts b/build.gradle.kts
index db22497..d8af5ac 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -120,7 +120,7 @@
 IdeVersionConfigurator.setCurrentIde(project)
 
 if (!project.hasProperty("versions.kotlin-native")) {
-    extra["versions.kotlin-native"] = "1.6.20-dev-5356"
+    extra["versions.kotlin-native"] = "1.6.20-dev-7317"
 }