Bump System.Reactive from 6.0.2 to 6.1.0 (#1765)

---
updated-dependencies:
- dependency-name: System.Reactive
  dependency-version: 6.1.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

Directory.Packages.props

@@ -23,7 +23,7 @@
     <PackageVersion Include="Swashbuckle.AspNetCore" Version="10.1.7" />
     <PackageVersion Include="System.Diagnostics.DiagnosticSource" Version="10.0.7" />
     <PackageVersion Include="System.IO.Abstractions.TestingHelpers" Version="22.1.1" />
-    <PackageVersion Include="System.Reactive" Version="6.0.2" />
+    <PackageVersion Include="System.Reactive" Version="6.1.0" />
     <PackageVersion Include="System.Text.Json" Version="9.0.8" />
     <PackageVersion Include="Vecc.YamlDotNet.Analyzers.StaticGenerator" Version="16.3.0" />
     <PackageVersion Include="Wiremock.Net" Version="1.12.0" />