fix(cadcclient): improve handling of stdout

[tjzegmott]

No description provided.

[coveralls]

coverage: 66.076% (-0.2%) from 66.28%
when pulling 320d4df on improve-stdout-handling
into 507d006 on main.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 0% with 14 lines in your changes missing coverage. Please review.
✅ Project coverage is 66.07%. Comparing base (507d006) to head (320d4df).

Files with missing lines	Patch %	Lines
dtcli/utilities/cadcclient.py	0.00%	14 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #136      +/-   ##
==========================================
- Coverage   66.27%   66.07%   -0.21%     
==========================================
  Files          14       14              
  Lines        1293     1297       +4     
==========================================
  Hits          857      857              
- Misses        436      440       +4     

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