chore(deps): update dependency eslint to v5

Author: renovate-bot

package.json

@@ -37,12 +37,12 @@
     "babel-preset-jsdoc-to-assert": "4.0.0",
     "babel-preset-power-assert": "2.0.0",
     "babel-register": "6.26.0",
-    "eslint": "4.7.2",
+    "eslint": "5.0.0",
     "mocha": "5.2.0",
     "power-assert": "1.6.0",
     "textlint-tester": "4.1.3"
   },
   "peerDependencies": {
-    "eslint": "^3.0.0 || ^4.0.0"
+    "eslint": "^3.0.0 || ^4.0.0 || ^5.0.0"
   }
 }