chore(deps): update actions/setup-node action to v2

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
actions/setup-node	action	major	v1 -> v2

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Release Notes

actions/setup-node

### [`v2`](https://togithub.com/actions/setup-node/compare/v1...v2) [Compare Source](https://togithub.com/actions/setup-node/compare/v1...v2)

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[codecov[bot]]

Codecov Report

Merging #414 (5d20a8b) into master (be2bc76) will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #414   +/-   ##
=======================================
  Coverage   85.28%   85.28%           
=======================================
  Files           9        9           
  Lines         367      367           
  Branches      122      122           
=======================================
  Hits          313      313           
  Misses         54       54           

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