chore(deps): update dependency codecov to v3.4.0

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change	References
codecov	devDependencies	minor	3.3.0 -> 3.4.0	source

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Release Notes

codecov/codecov-node

### [`v3.4.0`](https://togithub.com/codecov/codecov-node/compare/v3.3.0...v3.4.0) [Compare Source](https://togithub.com/codecov/codecov-node/compare/v3.3.0...v3.4.0)

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[codecov[bot]]

Codecov Report

Merging #43 into master will not change coverage. The diff coverage is n/a.

@@          Coverage Diff          @@
##           master    #43   +/-   ##
=====================================
  Coverage     100%   100%           
=====================================
  Files           2      2           
  Lines          45     45           
  Branches       11     11           
=====================================
  Hits           45     45