ci: drop node 16/18, add node 22 to test matrix (#1099)

Author: ppetzold

.github/workflows/main.yml

@@ -12,7 +12,7 @@ jobs:
 
         strategy:
             matrix:
-                node-version: [16.x, 18.x, 20.x]
+                node-version: [20.x, 22.x]
 
         services:
             postgres: