Bump Spectre.Console.Testing from 0.50.0 to 0.51.1

---
updated-dependencies:
- dependency-name: Spectre.Console.Testing
  dependency-version: 0.51.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

test/LoadTestToolbox.Tests.csproj

@@ -7,7 +7,7 @@
 	<ItemGroup>
 		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.14.1" />
 		<PackageReference Include="NSubstitute" Version="5.3.0" />
-		<PackageReference Include="Spectre.Console.Testing" Version="0.50.0" />
+		<PackageReference Include="Spectre.Console.Testing" Version="0.51.1" />
 		<PackageReference Include="xunit" Version="2.9.3" />
 		<PackageReference Include="xunit.runner.visualstudio" Version="3.1.4" />
 		<PackageReference Include="coverlet.collector" Version="6.0.4" />