Update CI Node version to match server

Author: pimterry

.github/workflows/ci.yml

@@ -10,7 +10,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [18.x, 20.x, v20.11.1, 22.x, '*']
+        node-version: [18.x, 20.x, v20.18.1, 22.x, '*']
 
     steps:
       - uses: actions/checkout@v4