refactor: migrate to ESM

[targos]

No description provided.

[codecov]

Codecov Report

Merging #601 (6d99b3d) into main (bdfbb6e) will increase coverage by 3.77%.
The diff coverage is 95.71%.

@@            Coverage Diff             @@
##             main     #601      +/-   ##
==========================================
+ Coverage   80.30%   84.07%   +3.77%     
==========================================
  Files          37       37              
  Lines        1828     4051    +2223     
==========================================
+ Hits         1468     3406    +1938     
- Misses        360      645     +285     

Impacted Files	Coverage Δ
lib/run.js	25.00% <57.89%> (+7.00%)	⬆️
lib/links.js	92.00% <85.71%> (+3.26%)	⬆️
lib/config.js	86.76% <86.36%> (+5.81%)	⬆️
lib/auth.js	85.71% <100.00%> (+5.27%)	⬆️
lib/cache.js	100.00% <100.00%> (ø)
lib/ci/build-types/benchmark_run.js	90.27% <100.00%> (+2.47%)	⬆️
lib/ci/build-types/citgm_build.js	75.77% <100.00%> (+4.03%)	⬆️
lib/ci/build-types/citgm_comparison_build.js	67.24% <100.00%> (+8.15%)	⬆️
lib/ci/build-types/commit_build.js	79.46% <100.00%> (+0.15%)	⬆️
lib/ci/build-types/fanned_build.js	31.03% <100.00%> (+12.61%)	⬆️
... and 61 more

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[targos]

@nodejs/node-core-utils

[Trott]

Rubber-stamp LGTM