update deprecated workflows in github actions

    name: Build site

    steps:

    - name: Checkout

      uses: actions/checkout@v4

      uses: actions/checkout@v7

      with:

        fetch-depth: 0

    - uses: szenius/set-timezone@v2.0

      with:

        timezoneLinux: "Asia/Shanghai"

    - name: Set timezone

      run: sudo timedatectl set-timezone Asia/Shanghai

    - name: Check Time

      run: date

    - uses: actions/setup-node@v4

    - uses: actions/setup-node@v7

      name: Install Node.js

      with:

        node-version-file: '.nvmrc'

    - uses: pnpm/action-setup@v4

    - uses: pnpm/action-setup@v6

      name: Install pnpm

      with:

        version: 10

        pnpm docs:build

    - name: Upload artifact

      uses: actions/upload-artifact@v4

      uses: actions/upload-artifact@v7

      with:

        name: 'sustech-online-build'

        path: './docs/.vuepress/dist/'

    needs: build

    if: github.repository_owner == 'SUSTech-CRA' && github.ref == 'refs/heads/master'

    steps:

    - uses: actions/download-artifact@v4

    - uses: actions/download-artifact@v8

      with:

        name: sustech-online-build

        path: "./docs/.vuepress/dist/"

      working-directory: "./docs/.vuepress/dist/"

    - name: Deploy to GitHub page

      uses: peaceiris/actions-gh-pages@v3

      uses: peaceiris/actions-gh-pages@v4

      with:

        github_token: ${{ secrets.GITHUB_TOKEN }}

        publish_dir: ./docs/.vuepress/dist/