chore: bump @dotcom-reliability-kit/eslint-config from 3.1.1 to 4.0.0

Bumps [@dotcom-reliability-kit/eslint-config](https://github.com/Financial-Times/dotcom-reliability-kit/tree/HEAD/packages/eslint-config) from 3.1.1 to 4.0.0.
- [Release notes](https://github.com/Financial-Times/dotcom-reliability-kit/releases)
- [Changelog](https://github.com/Financial-Times/dotcom-reliability-kit/blob/main/packages/eslint-config/CHANGELOG.md)
- [Commits](https://github.com/Financial-Times/dotcom-reliability-kit/commits/errors-v4.0.0/packages/eslint-config)

---
updated-dependencies:
- dependency-name: "@dotcom-reliability-kit/eslint-config"
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

package.json

@@ -6,7 +6,7 @@
     "@dotcom-reliability-kit/logger": "^3.2.2"
   },
   "devDependencies": {
-    "@dotcom-reliability-kit/eslint-config": "^3.1.1",
+    "@dotcom-reliability-kit/eslint-config": "^4.0.0",
     "@dotcom-tool-kit/component": "^5.1.5",
     "@dotcom-tool-kit/eslint": "^4.2.4",
     "@financial-times/eslint-config-next": "^7.1.0",