fix: appDireactory missing for windows-sign options

[rickymohk]

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• The changes have sufficient test coverage (if applicable).
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Summarize your changes:
Fixing windows-sign does not work due to appDirectory missing.

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[codecov]

Codecov Report

Attention: Patch coverage is 0% with 2 lines in your changes are missing coverage. Please review.

Project coverage is 89.06%. Comparing base (00d20b9) to head (7ecc0d8).

Files	Patch %	Lines
src/win32.ts	0.00%	2 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1731   +/-   ##
=======================================
  Coverage   89.06%   89.06%           
=======================================
  Files          17       17           
  Lines         905      905           
  Branches      187      187           
=======================================
  Hits          806      806           
  Misses         62       62           
  Partials       37       37           

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[felixrieseberg]

Thanks for the catch!

[felixrieseberg]

The test failure is unrelated and exists on main, merging.

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Thanks for your contribution! 🎉

[continuous-auth]

🎉 This PR is included in version 18.3.3 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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