fix(experimental-utils): Do not re-export 'ESLint'

[SamChou19815]

Closes #2100.

[typescript-eslint]

Thanks for the PR, @SamChou19815!

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[codecov]

Codecov Report

Merging #2101 into master will decrease coverage by 0.02%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #2101      +/-   ##
==========================================
- Coverage   93.44%   93.42%   -0.03%     
==========================================
  Files         171      171              
  Lines        7753     7752       -1     
  Branches     2214     2214              
==========================================
- Hits         7245     7242       -3     
- Misses        243      245       +2     
  Partials      265      265              

Flag	Coverage Δ
#unittest	93.42% <ø> (-0.03%)	⬇️

Impacted Files	Coverage Δ
packages/experimental-utils/src/ts-eslint/index.ts	100.00% <ø> (ø)
...ackages/experimental-utils/src/ts-eslint/ESLint.ts	0.00% <0.00%> (-100.00%)	⬇️

[bradzacher]

Thanks for looking into this!

I've got another solution I'm going to go with which includes an integration test to help prevent this happening in the future - #2105