fix: ACNA-1786 - serve-static hook error

[shazron]

Closes #609

How Has This Been Tested?

1. npm test
2. manual test (link local app plugin, set serve-static hook, then aio app run)

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• I have signed the Adobe Open Source CLA.
• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

[codecov]

Codecov Report

Merging #617 (da1d09c) into master (70b9a42) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##            master      #617   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           53        53           
  Lines         2812      2815    +3     
  Branches       527       528    +1     
=========================================
+ Hits          2812      2815    +3     

Impacted Files	Coverage Δ
src/commands/app/deploy.js	100.00% <100.00%> (ø)
src/lib/run-dev.js	100.00% <100.00%> (ø)

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[MichaelGoberling]

LGTM!

[MichaelGoberling]

Not sure what's going on with codecov. Investigating...

Edit: Re-ran checks, we're good to go. 🤷