fix: Flatted import

[ryanhefner]

• Resolves an issue where the cjs path was missing from the flatted package

[codecov]

Codecov Report

Merging #214 (8141a73) into master (2f154ed) will decrease coverage by 0.15%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master     #214      +/-   ##
==========================================
- Coverage   67.47%   67.31%   -0.16%     
==========================================
  Files           8        8              
  Lines         206      205       -1     
  Branches       44       44              
==========================================
- Hits          139      138       -1     
  Misses         58       58              
  Partials        9        9              

Impacted Files	Coverage Δ
src/ContentfulCache.js	29.16% <0.00%> (-2.84%)	⬇️

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