Merge pull request #393 from ant-design/dependabot/npm_and_yarn/eslint-6.7.2

Bump eslint from 4.18.2 to 6.7.2

Author: afc163

package.json

@@ -31,7 +31,7 @@
     "babel-core": "^7.0.0-0",
     "babel-preset-umi": "^1.0.0",
     "coveralls": "^3.0.6",
-    "eslint": "^4.18.2",
+    "eslint": "^6.7.2",
     "eslint-config-airbnb": "^6.2.0",
     "material-ui": "^0.20.2",
     "np": "^5.0.3",