ci: upgrade to actions/checkout@3 and actions/setup-node@3

Reference: https://github.blog/changelog/2022-09-22-github-actions-all-actions-will-begin-running-on-node16-instead-of-node12/

.github/workflows/ci.yml

@@ -9,6 +9,7 @@ on:
 jobs:
   test-node:
     runs-on: ubuntu-latest
+    timeout-minutes: 10
 
     strategy:
       matrix:
@@ -18,10 +19,10 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Use Node.js ${{ matrix.node-version }}
-        uses: actions/setup-node@v2
+        uses: actions/setup-node@v3
         with:
           node-version: ${{ matrix.node-version }}
 
@@ -30,6 +31,3 @@ jobs:
 
       - name: Run tests
         run: npm test
-        env:
-          CI: true
-        timeout-minutes: 10