Fix 'FileToBig' typo in strapi-provider-upload-local

[sebacampos]

Description of what you did:

Fixed 'FileToBig' typo as mentioned in Slack

[codecov]

Codecov Report

Merging #7643 into master will not change coverage.
The diff coverage is 0.00%.

@@           Coverage Diff           @@
##           master    #7643   +/-   ##
=======================================
  Coverage   26.37%   26.37%           
=======================================
  Files        1131     1131           
  Lines       15449    15449           
  Branches     2441     2441           
=======================================
  Hits         4074     4074           
  Misses       9564     9564           
  Partials     1811     1811           

Flag	Coverage Δ
#front	18.24% <ø> (ø)
#unit	53.85% <0.00%> (ø)

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Impacted Files	Coverage Δ
packages/strapi-provider-upload-local/lib/index.js	29.16% <0.00%> (ø)

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[alexandrebodin]

LGTM, thanks for the correction