dotnet test on Azure Devops has .NET 8 and requires .NET 6 and crashes?

Starting test execution, please wait...
A total of 1 test files matched the specified pattern.
Testhost process for source(s) '/home/vsts/work/1/s/[redacted].Test/bin/Release/net6.0/win-x64/[redacted].Test.dll' exited with error: You must install or update .NET to run this application.
App: /home/vsts/work/1/s/CommonProjects/[redacted].Test/bin/Release/net6.0/win-x64/testhost.dll
Architecture: x64
Framework: 'Microsoft.NETCore.App', version '6.0.0' (x64)
.NET location: /opt/hostedtoolcache/dotnet/
The following frameworks were found:
  8.0.6 at [/opt/hostedtoolcache/dotnet/shared/Microsoft.NETCore.App]
Learn more:
https://aka.ms/dotnet/app-launch-failed
To install missing framework, download:
https://aka.ms/dotnet-core-applaunch?framework=Microsoft.NETCore.App&framework_version=6.0.0&arch=x64&rid=linux-x64&os=ubuntu.22.04
. Please check the diagnostic logs for more information.
Results File: /home/vsts/work/_temp/_fv-az633-354_2024-05-31_14_52_14.trx

steps:
- task: UseDotNet@2
  displayName: 'Install .NET SDK'
  inputs:
    version: 8.x
    performMultiLevelLookup: true
    includePreviewVersions: false

- task: DotNetCoreCLI@2
  displayName: 'Test assemblies'
  inputs:
    command: 'test'
    projects: '**/bin/**/*.Test.dll'
    arguments: '-s .runsettings'