Bump codecov from 3.6.1 to 3.6.5 (#117)

Bumps [codecov](https://github.com/codecov/codecov-node) from 3.6.1 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[bot] <support@github.com>

package.json

@@ -29,7 +29,7 @@
   "devDependencies": {
     "@oclif/dev-cli": "^1",
     "acorn": "^7.0.0",
-    "codecov": "^3.2.0",
+    "codecov": "^3.6.5",
     "eslint": "^6.0.1",
     "eslint-config-oclif": "^1",
     "eslint-config-standard": "^13.0.1",