🐞 Unit Tests Won't Run in Visual Studio

### Is there an existing issue for this?

- [X] I have searched the existing issues

### Current Behavior

1. Compile the C++ with `make test-msvc`
2. Run the unit tests in Visual Studio (under the debug configuration)

Expected: Unit tests should pass
Actual: `System.DllNotFoundException : Unable to load DLL 'electionguard': The specified module could not be found. (Exception from HRESULT: 0x8007007E)`

### Expected Behavior

The problem is that `make test-msvc` generates `electionguard.dll` in the release configuration and `ElectionGuard.Encryption.Tests.csproj` is looking for it in the folder based on its active configuration. In other words `ElectionGuard.Encryption.Tests.csproj` conflates it's own configuration setting with that of the C++ electionguard library.

### Steps To Reproduce

_No response_

### Environment

```markdown
- OS: Windows
```

### Anything else?

_No response_

首先运行 make test-msvc，并检查 ElectionGuard.Encryption.Tests.csproj 以及生成的 electionguard.dll 所在位置。跟踪 Visual Studio 调试配置如何解析本机库，然后验证单元测试是否能够在不出现 System.DllNotFoundException 的情况下成功运行。

由索引模型根据 Issue 内容生成。