feat: change IPerformanceService to return HttpResponseMessage

[TimothyMakkison]

Change return types from Task<string> to Task<HttpResponseMessage. This makes the benchmarks more accurate as they are intended to measure the cost of configuring and sending a HttpRequestMessage and not the time taken to convert the response into a string.

On a related note why isn't refit using ReadAsStringAsync?

New Benchmark

Method	Mean	Error	StdDev	Gen0	Allocated
ConstantRouteAsync	2.072 us	0.0110 us	0.0097 us	0.2937	2.71 KB
DynamicRouteAsync	2.783 us	0.0259 us	0.0202 us	0.3319	3.07 KB
ComplexDynamicRouteAsync	4.060 us	0.0226 us	0.0200 us	0.4044	3.78 KB
ObjectRequestAsync	4.954 us	0.0295 us	0.0262 us	0.4807	4.48 KB
ComplexRequestAsync	14.455 us	0.0686 us	0.0642 us	1.1597	10.67 KB

Old

Method	Mean	Error	StdDev	Gen0	Gen1	Allocated
ConstantRouteAsync	2.045 us	0.0395 us	0.0638 us	0.6828	0.0114	6.28 KB
DynamicRouteAsync	2.601 us	0.0518 us	0.0532 us	0.7172	0.0038	6.6 KB
ComplexDynamicRouteAsync	3.799 us	0.0651 us	0.0891 us	0.7858	-	7.24 KB
ObjectRequestAsync	4.560 us	0.0886 us	0.1021 us	0.8698	-	8.05 KB
ComplexRequestAsync	12.951 us	0.2575 us	0.4643 us	1.5259	-	14.19 KB

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 84.28%. Comparing base (6ebeda5) to head (8eda6ae).
Report is 144 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1893      +/-   ##
==========================================
- Coverage   87.73%   84.28%   -3.45%     
==========================================
  Files          33       36       +3     
  Lines        2348     2476     +128     
  Branches      294      347      +53     
==========================================
+ Hits         2060     2087      +27     
- Misses        208      310     +102     
+ Partials       80       79       -1     

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[ChrisPulman]

If ReadAsStringAsync provides the same output long term than existing methods then I see no reason not to use it.

[github-actions]

This pull request has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.