refactor(cli): don't load config twice for commands that use a client

[krancour]

Ever since #1179, we've been loading CLI config up front since it may contain a user's preference for a default project.

I noticed today that commands requiring a client for interacting with the Kargo API server continue to reload the configuration just-in-time.

This change passed the config that is loaded up front to the "constructors" for each of the CLI's sub-commands so configuration is now only ever loaded once per invocation of the CLI.

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[codecov]

Codecov Report

Attention: 2 lines in your changes are missing coverage. Please review.

Comparison is base (237b90b) 45.40% compared to head (2a7fae5) 45.36%.

❗ Current head 2a7fae5 differs from pull request most recent head 28cf834. Consider uploading reports for the commit 28cf834 to get more accurate results

Files	Patch %	Lines
internal/cli/client/client.go	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1350      +/-   ##
==========================================
- Coverage   45.40%   45.36%   -0.04%     
==========================================
  Files         136      136              
  Lines       11717    11726       +9     
==========================================
  Hits         5320     5320              
- Misses       6206     6215       +9     
  Partials      191      191              

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[rbreeze]

LGTM!