chore: set engines.node to >=12.0.0

[legobeat]

This indicates currently working Node.js versions.

Below error on Node.js v10:

$ yarn
internal/modules/cjs/loader.js:638
    throw err;
    ^

Error: Cannot find module 'worker_threads'
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:636:15)
    at Function.Module._load (internal/modules/cjs/loader.js:562:25)
    at Module.require (internal/modules/cjs/loader.js:692:17)
    at require (internal/modules/cjs/helpers.js:25:18)
    at /app/.yarn/releases/yarn-3.6.3.cjs:423:3061
    at Object.<anonymous> (/app/.yarn/releases/yarn-3.6.3.cjs:744:8770)
    at Module._compile (internal/modules/cjs/loader.js:778:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:789:10)
    at Module.load (internal/modules/cjs/loader.js:653:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:593:12)

[kasperpeulen]

LGTM

[codecov]

Codecov Report

Patch and project coverage have no change.

Comparison is base (9e1136e) 76.66% compared to head (aff54d6) 76.66%.

Additional details and impacted files

@@           Coverage Diff           @@
##             next     #351   +/-   ##
=======================================
  Coverage   76.66%   76.66%           
=======================================
  Files          11       11           
  Lines         180      180           
  Branches       40       40           
=======================================
  Hits          138      138           
  Misses         42       42           

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[yannbf]

Hey @legobeat thank you so much for all of your contributions <3

[github-actions]

🚀 PR was released in v0.14.0 🚀