Switch to playwright for the vitest provider.

webdriverio has a higher configuration cost and there's currently a bug
with GitHub actions, linux and chrome that makes it annoying. Switching
to playwright should side-step that all.

Explicitly mention the emnapi packages to ensure they show up in the lock file for runs on linux.

Author: tim-schilling

.github/workflows/test.yml

@@ -35,6 +35,8 @@ jobs:
           cache-dependency-path: package-lock.json
       - name: Install Node dependencies
         run: npm ci
+      - name: Install Playwright browsers
+        run: npx playwright install --with-deps chromium firefox
       - run: npm test
       - uses: davelosert/vitest-coverage-report-action@02f3c2e641286b7fa308cd3e430783103ce6103b  # v2.12.0