--inline-direct is an internal CLI flag

[dbeatty10]

Resolves NA

Problem

--inline-direct introduced in #10770 is an internal CLI flag, but it will display via --help

Solution

Two-part solution per discussion with @graciegoheen:

1. Describe it as an internal flag
2. Remove it from display via --help

Checklist

• I have read the contributing guide and understand what's expected of me.
• I have run this code in development, and it appears to resolve the stated issue.
• Tests are not required or relevant for this PR.
• This PR has already received feedback and approval from Product or DX.
• This PR includes type annotations for new and modified functions.

[github-actions]

Thank you for your pull request! We could not find a changelog entry for this change. For details on how to document a change, see the contributing guide.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.17%. Comparing base (396cf2d) to head (cfb10f5).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #10806      +/-   ##
==========================================
- Coverage   89.21%   89.17%   -0.05%     
==========================================
  Files         183      183              
  Lines       23457    23457              
==========================================
- Hits        20928    20917      -11     
- Misses       2529     2540      +11     

Flag	Coverage Δ
integration	86.41% <ø> (-0.13%)	⬇️
unit	62.09% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Components	Coverage Δ
Unit Tests	62.09% <ø> (ø)
Integration Tests	86.41% <ø> (-0.13%)	⬇️