fix: chalk, debug, execa missing from package.json

[shazron]

closes #151

How Has This Been Tested?

npm install
npm test
npm run e2e (with runtime creds in ~/.wskprops)

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 #152 into master will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##            master      #152   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           57        57           
  Lines         1824      1824           
  Branches       332       332           
=========================================
  Hits          1824      1824           

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