fix: replace ccd with client-config in default config

[jkroepke]

What this PR does / why we need it

Which issue this PR fixes

(optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close that issue when PR gets merged): fixes #

• fixes Default config #632

Special notes for your reviewer

Particularly user-facing changes

Checklist

Complete these before marking the PR as ready to review:

• DCO signed
• The PR title has a summary of the changes
• The PR body has a summary to reflect any significant (and particularly user-facing) changes introduced by this PR

[codecov]

Codecov Report

❌ Patch coverage is 0% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 84.99%. Comparing base (f60970d) to head (c0342f7).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
internal/config/validate.go	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #633      +/-   ##
==========================================
- Coverage   85.14%   84.99%   -0.15%     
==========================================
  Files          52       52              
  Lines        3533     3533              
==========================================
- Hits         3008     3003       -5     
- Misses        399      404       +5     
  Partials      126      126              

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