Bump System.CommandLine from 2.0.0-beta1.21214.1 to 2.0.0-beta1.21215.1

Bumps [System.CommandLine](https://github.com/dotnet/command-line-api) from 2.0.0-beta1.21214.1 to 2.0.0-beta1.21215.1.
- [Release notes](https://github.com/dotnet/command-line-api/releases)
- [Changelog](https://github.com/dotnet/command-line-api/blob/main/docs/History.md)
- [Commits](https://github.com/dotnet/command-line-api/commits)

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

Shadowsocks.CLI/Shadowsocks.CLI.csproj

@@ -29,7 +29,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="System.CommandLine" Version="2.0.0-beta1.21214.1" />
+    <PackageReference Include="System.CommandLine" Version="2.0.0-beta1.21215.1" />
   </ItemGroup>
 
   <ItemGroup>

Shadowsocks.WPF/Shadowsocks.WPF.csproj

@@ -57,7 +57,7 @@
     <PackageReference Include="ReactiveUI.Validation" Version="2.1.1" />
     <PackageReference Include="ReactiveUI.WPF" Version="13.2.18" />
     <PackageReference Include="Splat.NLog" Version="11.0.1" />
-    <PackageReference Include="System.CommandLine" Version="2.0.0-beta1.21214.1" />
+    <PackageReference Include="System.CommandLine" Version="2.0.0-beta1.21215.1" />
     <PackageReference Include="System.Reactive" Version="5.0.0" />
     <PackageReference Include="WPFLocalizeExtension" Version="3.8.0" />
     <PackageReference Include="ZXing.Net" Version="0.16.6" />