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 #32 (df76fff) into master (172f74f) will not change coverage. The diff coverage is n/a.

@@            Coverage Diff            @@
##            master       #32   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            1         1           
  Lines           10        10           
  Branches         1         1           
=========================================
  Hits            10        10           

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