Refactor prepare task to use typed inputs and outputs

[justin-thurman]

• Promote prepare task to module
• Move validateFiles to separate file
• Move validateAndroidArtifact to separate file
• Move traceChangedFiles to separate file
• Move calculateFileHashes to separate file

📦 Published PR as canary version: 16.10.1--canary.1324.25741938765.0

✨ Test out this PR locally via:

npm install chromatic@16.10.1--canary.1324.25741938765.0
# or 
yarn add chromatic@16.10.1--canary.1324.25741938765.0

[github-actions]

📦 Package Size: 7100 KB
✅ Compared to main: 0 KB 9ed03ec (7100 KB)

[codecov]

Codecov Report

❌ Patch coverage is 86.45161% with 21 lines in your changes missing coverage. Please review.
✅ Project coverage is 80.26%. Comparing base (9ed03ec) to head (ce5c113).

Files with missing lines	Patch %	Lines
node-src/tasks/prepare/index.ts	63.15%	16 Missing and 5 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1324      +/-   ##
==========================================
- Coverage   80.74%   80.26%   -0.48%     
==========================================
  Files         214      218       +4     
  Lines        4197     4227      +30     
  Branches     1197     1200       +3     
==========================================
+ Hits         3389     3393       +4     
- Misses        694      709      +15     
- Partials      114      125      +11     

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