Compilation error when using Microsoft.Extensions.Telemetry.Abstractions with multiple TFMs

### Description

Compilation error when using multi targeting such as .NET 10 and NET 9.0 or NET 8.0 or both of them.

### Reproduction Steps

csproj file:
```

net9.0;net10.0
enable
enable
Exe

```

Program.cs:
```csharp
using Microsoft.AspNetCore.Builder;
using Microsoft.Extensions.Logging;

var builder = WebApplication.CreateBuilder(args);

var app = builder.Build();
app.MapGet("/index", () =>
{
using var loggerFactory = LoggerFactory.Create(builder => builder.AddConsole());
var logger = loggerFactory.CreateLogger("repro");

Log.Hello(logger, "hi");
});

app.Run();

internal static partial class Log
{
[LoggerMessage(LogLevel.Information, "Hello {Name}.")]
internal static partial void Hello(ILogger logger, string name);
}

```

### Expected behavior

Microsoft.Extensions.Logging.Abstractions does not kick in, code compiles and works correctly

### Actual behavior

Compilation error CS0757 A partial method may not have multiple implementing declarations

### Regression?

_No response_

### Known Workarounds

Add this to csproj file:
```





```

### Configuration

.NET 10 and multi targeting build with previous .NET such as 8.0 and/or 9.0

### Other information

_No response_