chore(package): update eslint-plugin-html to version 6.0.0

Closes #67

Author: greenkeeper[bot]

package.json

@@ -37,7 +37,7 @@
     "eslint": "^5.7.0",
     "eslint-config-airbnb-base": "^13.1.0",
     "eslint-import-resolver-jest": "^2.1.1",
-    "eslint-plugin-html": "^4.0.6",
+    "eslint-plugin-html": "^6.0.0",
     "eslint-plugin-import": "^2.14.0",
     "identity-obj-proxy": "^3.0.0",
     "jest": "^23.6.0",