Right-click a test and click debug causes the indicator to spin forever.

Steps to reproduce:

1. Start VS Code
2. Run the command to create NUnit Test
```
dotnet new unit --framwork net5.0
```
3. Right-click a test, and click debug.

The wheel will spin forever, and I see the following in the output:
```
Executing dotnet test --no-build --logger "trx;LogFileName=C:\Users\username\AppData\Local\Temp\2\test-explorer-v2Ocg1\0.trx" --filter "FullyQualifiedName=tests.Tests.Test1" in c:/Projects/Jira/some-folder/tests
Process 48352 started
Waiting for debugger to attach
Waiting for debugger to attach
Waiting for debugger to attach
Waiting for debugger to attach
Waiting for debugger to attach
Waiting for debugger to attach
Waiting for debugger to attach
Waiting for debugger to attach
```
Required info:
1. Dotnet sdk version:
```
> dotnet --info
.NET SDK (reflecting any global.json):
Version: 6.0.102
Commit: 02d5242ed7

Runtime Environment:
OS Name: Windows
OS Version: 10.0.19042
OS Platform: Windows
RID: win10-x64
Base Path: C:\Program Files\dotnet\sdk\6.0.102\

Host (useful for support):
Version: 6.0.2
Commit: 839cdfb0ec

.NET SDKs installed:
5.0.302 [C:\Program Files\dotnet\sdk]
5.0.405 [C:\Program Files\dotnet\sdk]
6.0.102 [C:\Program Files\dotnet\sdk]

.NET runtimes installed:
Microsoft.AspNetCore.App 5.0.8 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 5.0.14 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 6.0.2 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.NETCore.App 5.0.8 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 5.0.14 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 6.0.2 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.WindowsDesktop.App 5.0.8 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 5.0.14 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 6.0.2 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
```
5. Unit test framework and relevants versions of that:
"NUnit" Version="3.13.1"
"NUnit3TestAdapter" Version="3.17.0"

6. Dot NET Core Test Explorer Extension: v0.7.7

If I run the tests normally, everything works fine.

Please help to resolve this issue.

Tarek