feat(cli): add publish command for asset publishing

[go-to-k]

Fixes #982

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[codecov-commenter]

Codecov Report

❌ Patch coverage is 96.75325% with 5 lines in your changes missing coverage. Please review.
✅ Project coverage is 87.89%. Comparing base (943967e) to head (d2aed1f).

Files with missing lines	Patch %	Lines
packages/aws-cdk/lib/cli/cdk-toolkit.ts	95.93%	4 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1020      +/-   ##
==========================================
+ Coverage   87.72%   87.89%   +0.16%     
==========================================
  Files          72       72              
  Lines       10087    10241     +154     
  Branches     1330     1344      +14     
==========================================
+ Hits         8849     9001     +152     
- Misses       1213     1214       +1     
- Partials       25       26       +1     

Flag	Coverage Δ
suite.unit	87.89% <96.75%> (+0.16%)	⬆️

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