Bump eslint from 5.0.1 to 5.5.0 in /examples/fortune-api (#35)

Bumps [eslint](https://github.com/eslint/eslint) from 5.0.1 to 5.5.0.
- [Release notes](https://github.com/eslint/eslint/releases)
- [Changelog](https://github.com/eslint/eslint/blob/master/CHANGELOG.md)
- [Commits](eslint/eslint@v5.0.1...v5.5.0)

Signed-off-by: dependabot[bot] <support@dependabot.com>

examples/fortune-api/package.json

@@ -24,7 +24,7 @@
     "babel-preset-env": "1.7.0",
     "babel-preset-minify": "0.4.3",
     "babel-preset-stage-0": "6.24.1",
-    "eslint": "5.0.1",
+    "eslint": "5.5.0",
     "eslint-config-airbnb-base": "13.0.0",
     "eslint-plugin-mocha": "5.1.0",
     "nodemon": "1.18.4"