refactor: replace require-relative with built-in require.resolve

[dnalborczyk]

This PR contains:

• bugfix
• feature
• refactor
• documentation
• other

Are tests included?

• yes (bugfixes and features will not be merged without tests)
• no

Breaking Changes?

• yes (breaking changes will not be merged unless absolutely necessary)
• no

List any relevant issue numbers:

Description

[codecov]

Codecov Report

Merging #4352 (93111b2) into master (7c2823e) will decrease coverage by 0.00%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #4352      +/-   ##
==========================================
- Coverage   98.51%   98.51%   -0.01%     
==========================================
  Files         206      206              
  Lines        7333     7332       -1     
  Branches     2084     2084              
==========================================
- Hits         7224     7223       -1     
  Misses         51       51              
  Partials       58       58              

Impacted Files	Coverage Δ
cli/run/getConfigPath.ts	88.88% <100.00%> (-0.59%)	⬇️

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[lukastaegert]

Good find, looks good to me 👍