ci: build with Node 18.x (#734)

The version was missing in the range from 14 to 22.

Author: tbouffard

.github/workflows/node.js.yml

@@ -15,7 +15,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [14.x, 16.x, 20.x, 22.x]
+        node-version: [14.x, 16.x, 18.x, 20.x, 22.x]
 
     steps:
     - uses: actions/checkout@v2