Update dependencies

Author: LarsDenBakker

.github/workflows/verify.yml

@@ -37,6 +37,8 @@ jobs:
         with:
           node-version: 14
 
+      - uses: microsoft/playwright-github-action@v1
+
       - name: Install dependencies
         working-directory: ${{ matrix.project }}
         run: npm ci

guides/test-runner-coverage/package-lock.json

@@ -8,6 +8,6 @@
   },
   "devDependencies": {
     "@esm-bundle/chai": "4.1.5",
-    "@web/test-runner": "0.7.42"
+    "@web/test-runner": "0.8.1"
   }
 }

guides/test-runner-coverage/package.json

@@ -8,6 +8,6 @@
   },
   "devDependencies": {
     "@esm-bundle/chai": "4.1.5",
-    "@web/test-runner": "0.7.42"
+    "@web/test-runner": "0.8.1"
   }
 }