launch.json "env" attribute ignored from VSCode when debugging

## Issue Description ##
On a remote WSL configuration, I try to run from VSCode a profile defined in /.vscode/launch.json
The parameter "env" seems ignored

```json
{
"name": "C#: My Project Debug",
"type": "dotnet",
"request": "launch",
"projectPath": "${workspaceFolder}/path.to.my.csproj",
"env": {
"ASPNETCORE_ENVIRONMENT": "Staging"
}
},
```
## Steps to Reproduce ##

Create a simple aspnet project

in /.vscode/launch.json have a profile

```json
{
"name": "C#: My Project Debug",
"type": "dotnet",
"request": "launch",
"projectPath": "${workspaceFolder}/path.to.my.csproj",
"env": {
"ASPNETCORE_ENVIRONMENT": "Staging"
}
},
```

In Program.cs:

```csharp
var builder = WebApplication.CreateBuilder(args);
string Env = Environment.GetEnvironmentVariable("ASPNETCORE_ENVIRONMENT");
Console.WriteLine($"- {Env}");
Console.WriteLine(builder.Environment.EnvironmentName);
```

F5 from VSCode

## Expected Behavior ##

Output should display two lines :

```
- Staging
Staging
```

## Actual Behavior ##

Output display show no environment variable set

```
-
Production
```

## Remarks ##

I tried also with a classic configuration on windows (no remote WSL), same behavior

I got no issue _if_ I add to my project the file `Properties/launchSettings.json` and define `environmentVariables` values

But I assumed that you can use `launch.json` without `launchSettings.json`

## Environment information ##

**VSCode version**: 1.100.2
**C# Extension**: 2.76.27
**Using OmniSharp**: false

Dotnet Information
.NET SDK:
Version: 9.0.105
Commit: b7deac6d42
Workload version: 9.0.100-manifests.3b27a542
MSBuild version: 17.12.32+b7deac6d4

Runtime Environment:
OS Name: ubuntu
OS Version: 24.04
OS Platform: Linux
RID: ubuntu.24.04-x64
Base Path: /usr/lib/dotnet/sdk/9.0.105/

.NET workloads installed:
There are no installed workloads to display.
Configured to use loose manifests when installing new manifests.

Host:
Version: 9.0.4
Architecture: x64
Commit: b7deac6d42

.NET SDKs installed:
8.0.116 [/usr/lib/dotnet/sdk]
9.0.105 [/usr/lib/dotnet/sdk]

.NET runtimes installed:
Microsoft.AspNetCore.App 8.0.16 [/usr/lib/dotnet/shared/Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 9.0.4 [/usr/lib/dotnet/shared/Microsoft.AspNetCore.App]
Microsoft.NETCore.App 8.0.16 [/usr/lib/dotnet/shared/Microsoft.NETCore.App]
Microsoft.NETCore.App 9.0.4 [/usr/lib/dotnet/shared/Microsoft.NETCore.App]

Other architectures found:
None

Environment variables:
Not set

global.json file:
Not found

Learn more:
https://aka.ms/dotnet/info

Download .NET:
https://aka.ms/dotnet/download

Visual Studio Code Extensions

|Extension|Author|Version|Folder Name|
|---|---|---|---|
|csdevkit|ms-dotnettools|1.19.63|ms-dotnettools.csdevkit-1.19.63-linux-x64|
|csharp|ms-dotnettools|2.76.27|ms-dotnettools.csharp-2.76.27-linux-x64|
|csharp-organize-usings|jeremycaron|1.0.6|jeremycaron.csharp-organize-usings-1.0.6|
|csharp-to-plantuml|pierre3|1.4.0|pierre3.csharp-to-plantuml-1.4.0|
|docker|docker|0.6.0|docker.docker-0.6.0-linux-x64|
|git-graph|mhutchie|1.30.0|mhutchie.git-graph-1.30.0|
|nugetpackagemanagergui|aliasadidev|2.1.1|aliasadidev.nugetpackagemanagergui-2.1.1|
|plantuml|jebbs|2.18.1|jebbs.plantuml-2.18.1|
|prettyxml|PrateekMahendrakar|6.0.0|prateekmahendrakar.prettyxml-6.0.0|
|resx-editor|timheuer|0.2.34|timheuer.resx-editor-0.2.34|
|vscode-containers|ms-azuretools|2.0.1|ms-azuretools.vscode-containers-2.0.1|
|vscode-dotnet-runtime|ms-dotnettools|2.3.3|ms-dotnettools.vscode-dotnet-runtime-2.3.3|
|vscode-httpyac|anweber|6.16.7|anweber.vscode-httpyac-6.16.7|
|vscode-nupkg|eridem|1.0.1|eridem.vscode-nupkg-1.0.1|
|vscodeintellicode-csharp|ms-dotnettools|2.2.3|ms-dotnettools.vscodeintellicode-csharp-2.2.3-linux-x64|;