chore(deps): update actions/setup-node action to v4

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

.github/workflows/build.yml

@@ -7,11 +7,12 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
+        # note: keep in sync with if-statement on coveralls below
         node-version: [16.x, 18.x, 20.x]
     steps:
       - uses: actions/checkout@v4
       - name: Use Node.js ${{ matrix.node-version }}
-        uses: actions/setup-node@v3
+        uses: actions/setup-node@v4
         with:
           node-version: ${{ matrix.node-version }}
       - name: Install dependencies
@@ -32,5 +33,6 @@ jobs:
           CI: true
       - name: Coveralls
         uses: coverallsapp/github-action@master
+        if: matrix.node-version == '20.x'
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/release.yml

@@ -13,7 +13,7 @@ jobs:
         with:
           fetch-depth: 0
       - name: Setup Node.js
-        uses: actions/setup-node@v3
+        uses: actions/setup-node@v4
       - name: Install dependencies
         run: npm ci
       - name: Build