Update build.yml

Author: ymc9

.github/workflows/build.yml

@@ -1,6 +1,3 @@
-# This workflow will do a clean installation of node dependencies, cache/restore them, build the source code and run tests across different versions of node
-# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-nodejs
-
 name: CI
 
 env:
@@ -16,17 +13,12 @@ jobs:
     build:
         runs-on: ubuntu-latest
 
-        strategy:
-            matrix:
-                node-version: [16.x]
-                # See supported Node.js release schedule at https://nodejs.org/en/about/releases/
-
         steps:
             - uses: actions/checkout@v3
             - name: Use Node.js ${{ matrix.node-version }}
               uses: actions/setup-node@v3
               with:
-                  node-version: ${{ matrix.node-version }}
+                  node-version: 20.x
                   cache: 'npm'
             - run: npm ci
             - run: npm run build