chore: clean up old packages, bump node to v18

Author: odnari

.github/workflows/testing.yml

@@ -16,7 +16,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        node: [16, 18, 20]
+        node: [18, 20]
         os: [ubuntu-latest, windows-latest, macos-latest]
 
     steps: