chore(deps): update dependency system.reactive to 6.1.0 (#2015)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

Refit.GeneratorTests/Refit.GeneratorTests.csproj

@@ -29,7 +29,7 @@
     <PackageReference Include="Verify.DiffPlex" Version="3.1.2" />
     <PackageReference Include="Verify.SourceGenerators" Version="2.5.0" />
     <PackageReference Include="Verify.Xunit" Version="30.6.1" />
-    <PackageReference Include="System.Reactive" Version="6.0.2" />
+    <PackageReference Include="System.Reactive" Version="6.1.0" />
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.11.0" />
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp.SourceGenerators.Testing" Version="1.1.2" />
     <ProjectReference Include="..\Refit.Newtonsoft.Json\Refit.Newtonsoft.Json.csproj" />

Refit.Tests/Refit.Tests.csproj

@@ -38,7 +38,7 @@
     <PackageReference Include="System.Formats.Asn1" Version="9.0.3" />
     <PackageReference Include="xunit" Version="2.9.3" />
     <PackageReference Include="xunit.runner.visualstudio" Version="3.1.3" />
-    <PackageReference Include="System.Reactive" Version="6.0.2" />
+    <PackageReference Include="System.Reactive" Version="6.1.0" />
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.11.0" />
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp.SourceGenerators.Testing" Version="1.1.2" />
     <PackageReference Include="RichardSzalay.MockHttp" Version="$(MockHttpVersion)" />