Remove node18 from the CI (test 20 and 22)

Author: radare

.github/workflows/ci.yml

@@ -10,7 +10,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: ["18", "20"]
+        node-version: ["20", "22"]
 
     steps:
       - uses: actions/checkout@v3