Update GitHub action

Author: timolins

.github/workflows/main.yml

@@ -5,10 +5,12 @@ jobs:
     name: Build & test
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: pnpm/action-setup@v4
+        with:
+          version: 8
       - name: Use Node.js ${{ matrix.node-version }}
-        uses: actions/setup-node@v2
+        uses: actions/setup-node@v4
         with:
           node-version: ${{ matrix.node-version }}
           cache: 'pnpm'

.github/workflows/size.yml

@@ -6,8 +6,15 @@ jobs:
     env:
       CI_JOB_NUMBER: 1
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: pnpm/action-setup@v4
+        with:
+          version: 8
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 20.x
+          cache: 'pnpm'
+      - run: pnpm install
       - uses: andresz1/size-limit-action@v1
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}