ci: run browser quality on native Windows runner

.gitea/workflows/quality.yml

@@ -17,8 +17,8 @@ jobs:
           extra_args: --only-verified
 
   quality:
-    # Node, Playwright and the browser gate are supported by the shared Linux pool.
+    # Browser quality runs against the dedicated bounded Windows 11 VM runner.
-    runs-on: ubuntu-latest
+    runs-on: windows-native
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-node@v4
@@ -27,7 +27,7 @@ jobs:
           cache: npm
       - run: npm ci
       - run: npm run quality
-      - run: npx playwright install --with-deps chromium
+      - run: npx playwright install chromium
       - run: npm run test:browser:ci
       - name: Preserve browser failure evidence
         if: failure()