fix: binary scripts should use package exports

[SimenB]

Summary

Instead of reaching into build/ we should use the exported API. This also ensures it keeps working when we bundle without changes

Test plan

Green CI.

I've tested calling the binary files still work

[codecov-commenter]

Codecov Report

Merging #12315 (c5b34df) into main (a9b7e8a) will decrease coverage by 0.00%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##             main   #12315      +/-   ##
==========================================
- Coverage   67.25%   67.25%   -0.01%     
==========================================
  Files         329      330       +1     
  Lines       17353    17354       +1     
  Branches     5074     5074              
==========================================
  Hits        11671    11671              
- Misses       5650     5651       +1     
  Partials       32       32              

Impacted Files	Coverage Δ
packages/jest-repl/src/index.ts	0.00% <0.00%> (ø)

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[github-actions]

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