Bump System.CommandLine from 2.0.4 to 2.0.5 (#239)

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Updated [System.CommandLine](https://github.com/dotnet/dotnet) from
2.0.4 to 2.0.5.

<details>
<summary>Release notes</summary>

_Sourced from [System.CommandLine's
releases](https://github.com/dotnet/dotnet/releases)._

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Directory.Packages.props

@@ -10,7 +10,7 @@
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="18.3.0" />
     <PackageVersion Include="Microsoft.SourceLink.GitHub" Version="10.0.201" />
     <PackageVersion Include="Polly" Version="8.6.6" />
-	<PackageVersion Include="System.CommandLine" Version="2.0.4" />
+	<PackageVersion Include="System.CommandLine" Version="2.0.5" />
     <PackageVersion Include="xunit" Version="2.9.3" />
     <PackageVersion Include="xunit.runner.visualstudio" Version="3.1.5" />
   </ItemGroup>