fix github security warning because of old code coverage package (only in dev)

Author: SpaceK33z

.travis.yml

@@ -14,5 +14,6 @@ script:
   npm run ci
 
 after_success:
-  - cat ./coverage/coverage.json | node_modules/codecov.io/bin/codecov.io.js
+  - npm i -g codecov
+  - cat ./coverage/coverage.json | codecov
   - rm -rf ./coverage

package-lock.json

@@ -76,7 +76,6 @@
     "babel-core": "^6.26.0",
     "babel-loader": "^7.1.4",
     "babel-preset-env": "^1.6.1",
-    "codecov.io": "^0.1.6",
     "copy-webpack-plugin": "^4.5.1",
     "css-loader": "^0.28.10",
     "eslint": "^4.18.2",