Bump System.CommandLine from 2.0.0-beta1.21227.1 to 2.0.0-beta4.24528.1

Bumps [System.CommandLine](https://github.com/dotnet/command-line-api) from 2.0.0-beta1.21227.1 to 2.0.0-beta4.24528.1.
- [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)

---
updated-dependencies:
- dependency-name: System.CommandLine
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Shadowsocks.CLI/Shadowsocks.CLI.csproj

@@ -29,7 +29,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="System.CommandLine" Version="2.0.0-beta1.21227.1" />
+    <PackageReference Include="System.CommandLine" Version="2.0.0-beta4.24528.1" />
   </ItemGroup>
 
   <ItemGroup>