chore(package): update codecov to version 3.7.0

Closes #103

Author: greenkeeper[bot]

package.json

@@ -48,7 +48,7 @@
     "@verdaccio/babel-preset": "8.2.0",
     "@verdaccio/eslint-config": "8.2.0",
     "@verdaccio/types": "8.3.0",
-    "codecov": "3.6.0",
+    "codecov": "3.7.0",
     "cross-env": "6.0.2",
     "eslint": "6.6.0",
     "husky": "3.0.9",