test: cover source instead of bundled code

[Shinigami92]

No description provided.

[codecov]

Codecov Report

Merging #432 (a7fdb02) into main (ff54abb) will increase coverage by 5.06%.
The diff coverage is 95.65%.

❗ Current head a7fdb02 differs from pull request most recent head 71360c9. Consider uploading reports for the commit 71360c9 to get more accurate results

@@            Coverage Diff             @@
##             main     #432      +/-   ##
==========================================
+ Coverage   94.24%   99.30%   +5.06%     
==========================================
  Files        1920     1920              
  Lines      173955   173957       +2     
  Branches      108      895     +787     
==========================================
+ Hits       163942   172747    +8805     
+ Misses       9905     1118    -8787     
+ Partials      108       92      -16     

Impacted Files	Coverage Δ
src/helpers.ts	98.77% <0.00%> (+98.77%)	⬆️
src/address.ts	98.13% <100.00%> (+98.13%)	⬆️
src/finance.ts	98.53% <100.00%> (+98.53%)	⬆️
src/image.ts	98.56% <100.00%> (+98.56%)	⬆️
src/image_providers/lorempicsum.ts	95.27% <100.00%> (+95.27%)	⬆️
src/image_providers/lorempixel.ts	92.90% <100.00%> (+92.90%)	⬆️
src/image_providers/unsplash.ts	99.37% <100.00%> (+99.37%)	⬆️
src/internet.ts	99.04% <100.00%> (+99.04%)	⬆️
src/name.ts	94.02% <100.00%> (+94.02%)	⬆️
src/unique.ts	100.00% <100.00%> (+100.00%)	⬆️
... and 52 more

[Shinigami92]

Please note that I explicitly left test/locale-imports.spec.ts as is, so we currently still need to build the code before running the tests

[Shinigami92]

Currently trying to find a way to prevent the replacement of ||= just to support Node 14.
The bundled code should already cover that.

[Shinigami92]

For now we rewrote it, we can find a way later in another PR if needed