chore(package): update @typescript-eslint/eslint-plugin to version 3.0.2

Closes #78

Author: greenkeeper[bot]

Diff for: package.json

@@ -41,7 +41,7 @@
     "@types/lodash.isobject": "^3.0.6",
     "@types/mocha": "^5.2.7",
     "@types/node": "^12.12.14",
-    "@typescript-eslint/eslint-plugin": "^2.9.0",
+    "@typescript-eslint/eslint-plugin": "^3.0.2",
     "@typescript-eslint/parser": "^2.9.0",
     "chai": "^4.1.2",
     "coveralls": "^3.0.2",