chore: update node testing to 20

Signed-off-by: John Molakvoæ <skjnldsv@users.noreply.github.com>

Author: skjnldsv

.github/workflows/node-test.yml

@@ -16,7 +16,7 @@ jobs:
       pull-requests: write
     strategy:
       matrix:
-        node-version: [ 16, 18, 20 ]
+        node-version: [ 20 ]
 
     name: test
     steps: