Kotlin 1.5.30, libsodium update, coroutines/serialization update

buildSrc/src/main/kotlin/Deps.kt

@@ -15,10 +15,10 @@
  */
 
 object Versions {
-    val kotlinCoroutines = "1.5.0-native-mt"
-    val kotlin = "1.5.21"
-    val kotlinSerialization = "1.0.1"
-    val kotlinSerializationPlugin = "1.5.10"
+    val kotlinCoroutines = "1.5.2-native-mt"
+    val kotlin = "1.5.30"
+    val kotlinSerialization = "1.3.0-RC"
+    val kotlinSerializationPlugin = "1.5.30"
     val atomicfu = "0.14.3-M2-2-SNAPSHOT" //NOTE: my linux arm32 and arm64 build
     val nodePlugin = "1.3.0"
     val dokkaPlugin = "1.5.0"