refactor: use object spread

[nadavkaner]

Closes #508

[codecov]

Codecov Report

Merging #524 into master will not change coverage.
The diff coverage is 100%.

@@          Coverage Diff          @@
##           master   #524   +/-   ##
=====================================
  Coverage      98%    98%           
=====================================
  Files          13     13           
  Lines         351    351           
  Branches       44     44           
=====================================
  Hits          344    344           
  Misses          7      7

Impacted Files	Coverage Δ
src/getConfig.js	100% <100%> (ø)	⬆️
src/resolveTaskFn.js	100% <100%> (ø)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 225a904...f1adbed. Read the comment docs.

[okonet]

Thanks for working on it!