chore: migrate to yarn 2 (berry)

[faustbrian]

No description provided.

[faustbrian]

• Can't install with pnpm or yarn v2 nodejs/full-icu-npm#44
• [Bug] full-icu is not supported yarnpkg/berry#873 (comment)

[faustbrian]

Running tests on N14 only for the time being because of the full-icu issue.

[codecov]

Codecov Report

Merging #76 into master will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##            master       #76   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          193       193           
  Lines         1171      1174    +3     
  Branches       113       113           
=========================================
+ Hits          1171      1174    +3     

Impacted Files	Coverage Δ
src/reverse.ts	100.00% <0.00%> (ø)
src/big-number.ts	100.00% <0.00%> (ø)
src/internal/index.ts	100.00% <0.00%> (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 1e18667...df79d76. Read the comment docs.