chore(deps-dev): bump codecov from 3.1.0 to 3.6.5 (#341)

Bumps [codecov](https://github.com/codecov/codecov-node) from 3.1.0 to 3.6.5.
- [Release notes](https://github.com/codecov/codecov-node/releases)
- [Commits](https://github.com/codecov/codecov-node/commits)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

package.json

@@ -35,7 +35,7 @@
     "@types/eslint-plugin-prettier": "2.2.0",
     "@types/node": "4.9.3",
     "@types/prettier": "1.13.2",
-    "codecov": "3.1.0",
+    "codecov": "3.6.5",
     "nyc": "11.9.0",
     "prettier": "1.15.2",
     "prettier-config-ikatyang": "1.1.1",