Upgrade puppeteer to 21.x

client/tests/integration/package.json

@@ -6,6 +6,6 @@
     "expect-puppeteer": "^6.1.0",
     "jest": "^27.5.1",
     "jest-junit": "^13.0.0",
-    "puppeteer": "^19.0.0"
+    "puppeteer": "^21.0.0"
   }
 }