You can run this command in a script to force the result of a pipeline task:

- script: echo "##vso[task.complete result=SucceededWithIssues;]"

Possible task results are:

• Succeeded
• SucceededWithIssues
• Failed

See more here: https://learn.microsoft.com/en-us/azure/devops/pipelines/scripts/logging-commands?view=azure-devops&tabs=bash#example-1