build: use codacy for coverage instead of coveralls

README.md

@@ -1,6 +1,7 @@
 # opossum [![CircleCI](https://circleci.com/gh/nodeshift/opossum/tree/master.svg?style=svg&circle-token=0742302baa8c95cef354997ea52a383d3d078ff1)](https://circleci.com/gh/nodeshift/opossum/tree/master)
 
-[![Coverage Status](https://coveralls.io/repos/github/nodeshift/opossum/badge.svg)](https://coveralls.io/github/nodeshift/opossum)
+[![Codacy Badge](https://api.codacy.com/project/badge/Grade/03f9af1e697743edbe91f8d29831a75d)](https://www.codacy.com/app/nodeshift/opossum?utm_source=github.com&utm_medium=referral&utm_content=nodeshift/opossum&utm_campaign=Badge_Grade)
+[![Codacy Badge](https://api.codacy.com/project/badge/Coverage/03f9af1e697743edbe91f8d29831a75d)](https://www.codacy.com/app/nodeshift/opossum?utm_source=github.com&utm_medium=referral&utm_content=nodeshift/opossum&utm_campaign=Badge_Coverage)
 [![Greenkeeper badge](https://badges.greenkeeper.io/nodeshift/opossum.svg)](https://greenkeeper.io/)
 [![Known Vulnerabilities](https://snyk.io/test/npm/opossum/badge.svg)](https://snyk.io/test/npm/opossum)
 [![dependencies Status](https://david-dm.org/nodeshift/opossum/status.svg)](https://david-dm.org/nodeshift/opossum)

package.json

@@ -19,7 +19,7 @@
     "test": "nyc tape test/*.js | tap-spec",
     "test:headless": "node test/browser/webpack-test.js",
     "test:browser": "opener http://localhost:9007/test/browser/index.html && serve . -p 9007",
-    "coverage": "nyc report && nyc report --reporter=text-lcov | coveralls",
+    "coverage": "nyc report && nyc report --reporter=text-lcov | codacy-coverage",
     "ci": "npm run build && npm run test && npm run test:headless && npm run coverage",
     "prerelease": "npm run test:ci",
     "release": "standard-version -s",