fix(http): use return to avoid multiple resolve

[air1one]

Summary

Fixes ArkEcosystem/core#4165

Checklist

• Documentation (if necessary)
• Tests (if necessary)
• Ready to be merged

[codecov]

Codecov Report

Merging #99 (772e0d0) into master (e6def4e) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##            master       #99   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          191       191           
  Lines          981       981           
  Branches       113       137   +24     
=========================================
  Hits           981       981           

Impacted Files	Coverage Δ
src/http.ts	100.00% <100.00%> (ø)

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