Bump protocolify from 3.0.0 to 4.0.0

Bumps [protocolify](https://github.com/sindresorhus/protocolify) from 3.0.0 to 4.0.0.
- [Release notes](https://github.com/sindresorhus/protocolify/releases)
- [Commits](sindresorhus/protocolify@v3.0.0...v4.0.0)

---
updated-dependencies:
- dependency-name: protocolify
  dependency-version: 4.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package-lock.json

@@ -32,7 +32,7 @@
     "lodash": "~4.17.21",
     "node-fetch": "~2.7.0",
     "pa11y": "^9.0.0",
-    "protocolify": "~3.0.0",
+    "protocolify": "~4.0.0",
     "puppeteer": "^24.7.2",
     "wordwrap": "~1.0.0"
   },