refactor(eas-cli): update eas worker:alias with same polishes from eas worker

[byCedric]

Why

See #2555, this applies the same polishes in terms of help and normal command output.

How

See #2555

Test Plan

easd deploy:alias --help

easd deploy:alias --id xxx --alias pr-test

[github-actions]

Size Change: -931 B (0%)

Total Size: 52.9 MB

Filename	Size	Change
./packages/eas-cli/dist/eas-linux-x64.tar.gz	52.9 MB	-931 B (0%)

_{compressed-size-action}

[codecov]

Codecov Report

Attention: Patch coverage is 12.50000% with 7 lines in your changes missing coverage. Please review.

Project coverage is 52.24%. Comparing base (d15cd90) to head (d43cba9).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
packages/eas-cli/src/commands/worker/alias.ts	12.50%	7 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2558      +/-   ##
==========================================
- Coverage   52.24%   52.24%   -0.00%     
==========================================
  Files         557      557              
  Lines       21004    21006       +2     
  Branches     4291     4291              
==========================================
+ Hits        10972    10973       +1     
- Misses       9167     9168       +1     
  Partials      865      865              

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[github-actions]

✅ Thank you for adding the changelog entry!