chore: drop node < v20 from tests

Author: coolaj86

.github/workflows/node.js.yml

@@ -1,19 +1,20 @@
 name: Node.js CI
 on:
   push:
-    branches: [ "master" ]
+    branches: [ "main" ]
   pull_request:
 jobs:
   build:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [14.x, 16.x, 18.x, latest]
+        node-version: [20.x, latest]
     steps:
     - uses: actions/checkout@v3
     - name: Use Node.js ${{ matrix.node-version }}
       uses: actions/setup-node@v3
       with:
         node-version: ${{ matrix.node-version }}
-    - run: npm install
+    - run: npm run fmt
+    - run: npm ci
     - run: npm test