WithProxy(...) also use all proxy settings

[StefH]

No description provided.

[codecov]

Codecov Report

Merging #550 (5493811) into master (04d55b0) will increase coverage by 0.64%.
The diff coverage is 89.86%.

@@            Coverage Diff             @@
##           master     #550      +/-   ##
==========================================
+ Coverage   75.55%   76.20%   +0.64%     
==========================================
  Files         139      142       +3     
  Lines        5563     5597      +34     
  Branches      562      565       +3     
==========================================
+ Hits         4203     4265      +62     
+ Misses       1192     1163      -29     
- Partials      168      169       +1     

Impacted Files	Coverage Δ
src/WireMock.Net/Owin/WireMockMiddleware.cs	91.97% <83.33%> (-0.83%)	⬇️
...c/WireMock.Net/Serialization/MappingToFileSaver.cs	83.33% <83.33%> (ø)
src/WireMock.Net/Server/WireMockServer.Admin.cs	55.97% <83.33%> (-2.27%)	⬇️
src/WireMock.Net/Proxy/ProxyHelper.cs	87.71% <87.71%> (ø)
src/WireMock.Net/Http/HttpClientBuilder.cs	68.96% <100.00%> (ø)
src/WireMock.Net/Mapping.cs	96.15% <100.00%> (+0.80%)	⬆️
...ireMock.Net/ResponseBuilders/Response.WithProxy.cs	100.00% <100.00%> (+5.55%)	⬆️
src/WireMock.Net/ResponseBuilders/Response.cs	94.97% <100.00%> (+0.02%)	⬆️
...ck.Net/Serialization/JsonSerializationConstants.cs	100.00% <100.00%> (ø)
src/WireMock.Net/Serialization/MappingConverter.cs	69.46% <100.00%> (+14.97%)	⬆️
... and 6 more

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[sonarcloud]

Kudos, SonarCloud Quality Gate passed!

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

89.2% Coverage
0.0% Duplication