[HttpClient] Fix errorType statusCode

[vishweshbankwar]

Follow up #5034 (comment)

[codecov]

Codecov Report

Merging #5039 (e5ce2c1) into main (94ede6e) will decrease coverage by 0.20%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main    #5039      +/-   ##
==========================================
- Coverage   83.54%   83.34%   -0.20%     
==========================================
  Files         296      296              
  Lines       12467    12467              
==========================================
- Hits        10415    10391      -24     
- Misses       2052     2076      +24     

Flag	Coverage Δ
unittests	83.34% <100.00%> (-0.20%)	⬇️

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

Files	Coverage Δ
...tp/Implementation/HttpHandlerDiagnosticListener.cs	73.50% <100.00%> (ø)
...ementation/HttpHandlerMetricsDiagnosticListener.cs	90.14% <100.00%> (ø)

... and 5 files with indirect coverage changes