ci: use socket firewall and renforce npx security

Author: fraxken

.github/workflows/nodejs.yml

@@ -27,13 +27,15 @@ jobs:
         uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
         with:
           node-version: ${{ matrix.node-version }}
+      - name: Install socket firewall
+        run: npm i -g sfw
       - name: Install dependencies
-        run: npm install --ignore-scripts
+        run: sfw npm install --ignore-scripts
       - name: Build
         run: npm run build
       - name: Install Playwright browsers
         if: matrix.os == 'ubuntu-latest'
-        run: npx playwright install --with-deps
+        run: npx --no --offline playwright install --with-deps
       - name: Run tests
         run: npm run coverage
       - name: Run e2e tests