setup-sdl: Use node 16

SDL Commits
1 
From 63c9e3cba755471c02172a524ea1dff470eb060c Mon Sep 17 00:00:00 2001
From: Anonymous Maarten <[EMAIL REDACTED]>
Date: Sun, 21 Jan 2024 19:25:08 +0100
Subject: [PATCH] Use node 16

---
 action.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/action.yml b/action.yml
index 9836ff0..482ef47 100644
--- a/action.yml
+++ b/action.yml
@@ -55,5 +55,5 @@ outputs:
   version:
     description: "SDL version"
 runs:
-  using: "node20"
+  using: "node16"
   main: "packed/index.js"