Merge pull request #90 from whtsky/renovate/codecov-2.x

chore(dependencies): update dependency codecov to ^2.1.0

Author: renovate[bot]

poetry.lock

@@ -30,4 +30,4 @@ pytest = "^5.4.2"
 pytest-cov = "^2.8.1"
 coveralls = "^1.11.1"
 black = {version = "^19.10b0", python = "^3.6"}
-codecov = "^2.0.22"
+codecov = "^2.1.0"