removed node 16 and added node 21

.github/workflows/build.yml

@@ -1,27 +1,27 @@
 name: Build
 
 on:
-  push:
-    branches: [ main ]
-  pull_request:
-    branches: [ main ]
-  workflow_dispatch:
+    push:
+        branches: [main]
+    pull_request:
+        branches: [main]
+    workflow_dispatch:
 
 jobs:
-  build:
-    runs-on: ubuntu-latest
+    build:
+        runs-on: ubuntu-latest
 
-    strategy:
-      matrix:
-        node-version: [16.x, 18.x, 20.x]
+        strategy:
+            matrix:
+                node-version: [18.x, 20.x, 21.x]
 
-    steps:
-    - uses: actions/checkout@v4
-    - name: Use Node.js ${{ matrix.node-version }}
-      uses: actions/setup-node@v4
-      with:
-        node-version: ${{ matrix.node-version }}
-    - run: npm install
-    - run: npm run build-release
-    - run: npm run lint
-    - run: npm run test
+        steps:
+            - uses: actions/checkout@v4
+            - name: Use Node.js ${{ matrix.node-version }}
+              uses: actions/setup-node@v4
+              with:
+                  node-version: ${{ matrix.node-version }}
+            - run: npm install
+            - run: npm run build-release
+            - run: npm run lint
+            - run: npm run test