fix: fix duplicate plugin/preset detected error

[sinchang]

Closes: #746

Summary

Test plan

[vercel]

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Name	Status	Preview	Updated
svgr	✅ Ready (Inspect)	Visit Preview	Jul 19, 2022 at 3:00AM (UTC)

[codecov]

Codecov Report

Merging #747 (efc8466) into main (d2a2f07) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main     #747   +/-   ##
=======================================
  Coverage   92.26%   92.26%           
=======================================
  Files          32       32           
  Lines         802      802           
  Branches      249      249           
=======================================
  Hits          740      740           
  Misses         61       61           
  Partials        1        1           

Impacted Files	Coverage Δ
packages/babel-preset/src/index.ts	95.74% <100.00%> (ø)

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[gregberge]

@sinchang thanks!