ci: drop node 16

Author: sxzz

.github/workflows/unit-test.yml

@@ -35,25 +35,26 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, windows-latest]
-        node: [16, 18, 20]
+        node: [18, 20, 22]
       fail-fast: false
 
     steps:
       - uses: actions/checkout@v4
 
+      - name: Enable Corepack
+        run: corepack enable
+
       - name: Set node ${{ matrix.node }}
         uses: actions/setup-node@v4
         with:
           node-version: ${{ matrix.node }}
-
-      - name: Setup
-        run: npm i -g @antfu/ni
+          cache: pnpm
 
       - name: Install
-        run: nci
+        run: pnpm install
 
       - name: Build
-        run: nr build
+        run: pnpm run build
 
       - name: Test
-        run: nr test
+        run: pnpm run test