get: update show-url to take remote args

[dberenbaum]

See https://discuss.dvc.org/t/how-can-i-dvc-get-using-a-non-default-remote-storage/1992.

This PR:

• Updates dvc get --show-url so that it respects --remote and --remote-config
• Updates dvc.api.get_url to take remote, config, and remote_config kwargs like dvc.api.open

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.67%. Comparing base (6bdf41a) to head (58faf0b).

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #10349      +/-   ##
==========================================
+ Coverage   90.66%   90.67%   +0.01%     
==========================================
  Files         500      500              
  Lines       38670    38679       +9     
  Branches     5591     5591              
==========================================
+ Hits        35059    35073      +14     
+ Misses       2967     2963       -4     
+ Partials      644      643       -1     

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