Fix encoding

Otherwise I get:
```
TypeError [ERR_UNKNOWN_ENCODING]: Unknown encoding: UTF8 {}
```

Author: i-am-the-slime

src/Node/Net/Socket.purs

@@ -68,7 +68,7 @@ import Effect.Exception (Error)
 import Effect.Uncurried (EffectFn1, EffectFn2, EffectFn3, EffectFn4, mkEffectFn1, mkEffectFn4, runEffectFn1, runEffectFn2, runEffectFn3, runEffectFn4)
 import Foreign (Foreign)
 import Node.Buffer (Buffer)
-import Node.Encoding (Encoding)
+import Node.Encoding (Encoding, encodingToNode)
 import Node.FS (FileDescriptor)
 
 -- | Options to configure the connecting side of a `Socket`.
@@ -469,7 +469,7 @@ foreign import writeImpl :: EffectFn3 Socket Buffer (Effect Unit) Boolean
 write :: Socket -> Buffer -> Effect Unit -> Effect Boolean
 write socket buffer callback = runEffectFn3 writeImpl socket buffer callback
 
-foreign import writeStringImpl :: EffectFn4 Socket String Encoding (Effect Unit) Boolean
+foreign import writeStringImpl :: EffectFn4 Socket String String (Effect Unit) Boolean
 
 -- | Sends data on the `Socket` and invokes the callback after the data is
 -- | finally written.
@@ -478,4 +478,4 @@ foreign import writeStringImpl :: EffectFn4 Socket String Encoding (Effect Unit)
 -- | Emits a `'drain'` event after the buffer is free.
 writeString :: Socket -> String -> Encoding -> Effect Unit -> Effect Boolean
 writeString socket str encoding callback =
-  runEffectFn4 writeStringImpl socket str encoding callback
+  runEffectFn4 writeStringImpl socket str (encodingToNode encoding) callback