Replace <rootDir> in testMatch and moduleDirectories

[thymikee]

Summary

Fixes regressions described in #3535 and #3499

Test plan

Update normalize-test.js accordingly.

[codecov-io]

Codecov Report

Merging #3538 into master will increase coverage by 0.05%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master    #3538      +/-   ##
==========================================
+ Coverage   62.25%   62.31%   +0.05%     
==========================================
  Files         181      181              
  Lines        6706     6708       +2     
  Branches        6        6              
==========================================
+ Hits         4175     4180       +5     
+ Misses       2528     2525       -3     
  Partials        3        3

Impacted Files	Coverage Δ
packages/jest-config/src/normalize.js	90.9% <100%> (+0.1%)	⬆️
packages/jest-config/src/utils.js	81.63% <0%> (+6.12%)	⬆️

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[github-actions]

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