update cli-docs-gen tools to remove old reference doc files

[glours]

What I did
Update cli-docs-gen tool to remove old reference documentation files

Related issue
N/A

(not mandatory) A picture of a cute animal, if possible in relation to what you did

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 56.93%. Comparing base (6727908) to head (91f61cf).
Report is 477 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #11155      +/-   ##
==========================================
- Coverage   57.16%   56.93%   -0.24%     
==========================================
  Files         129      133       +4     
  Lines       11339    11364      +25     
==========================================
- Hits         6482     6470      -12     
- Misses       4225     4269      +44     
+ Partials      632      625       -7     

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