Fix tests affected by missing schema descriptions

[glen-84]

Summary of the changes (Less than 80 chars)

• Fixed tests affected by missing schema descriptions by adding descriptions to the types.

[codecov]

Codecov Report

Attention: 3 lines in your changes are missing coverage. Please review.

Comparison is base (01daf1e) 69.52% compared to head (afdbf89) 69.69%.

Files	Patch %	Lines
...es/Types/Directives/TagDirectiveConfigAttribute.cs	40.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6815      +/-   ##
==========================================
+ Coverage   69.52%   69.69%   +0.17%     
==========================================
  Files        2481     2499      +18     
  Lines      125456   126162     +706     
==========================================
+ Hits        87219    87925     +706     
  Misses      38237    38237              

Flag	Coverage Δ
unittests	69.69% <72.72%> (+0.17%)	⬆️

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