fix for when outputDir is an absolute path

[petersendidit]

Issue: Absolute path output in build-storybook doesn't work as expected #5334

What I did

Added a check for outputDir to see if its a absolute path already before trying to resolve it into one.

How to test

Set --output-path to an absolute path

• Is this testable with Jest or Chromatic screenshots? not that I know of
• Does this need a new example in the kitchen sink apps? no
• Does this need an update to the documentation? no

If your answer is yes to any of these, please make sure to include it in your PR.

[codecov]

Codecov Report

Merging #5573 into next will not change coverage.
The diff coverage is 0%.

@@          Coverage Diff          @@
##            next   #5573   +/-   ##
=====================================
  Coverage   33.2%   33.2%           
=====================================
  Files        647     647           
  Lines       9315    9315           
  Branches    1325    1325           
=====================================
  Hits        3093    3093           
  Misses      5607    5607           
  Partials     615     615

Impacted Files	Coverage Δ
lib/core/src/server/build-static.js	0% <0%> (ø)	⬆️

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[ndelangen]

Nice find, and nice solution, Thank you @petersendidit!