It looks like the user account you are using is enforcing MFA but Azure DevOps is not allowing an interactive type login which allows you to complete the MFA prompt.
We would recommend using a service principal to authenticate your pipeline, I will share some articles below:
The other option would be to disable / bypass MFA for this specific account, generally this is not recommended though and would also depend on how you are applying MFA, i.e Security Defaults, Conditional Access, per-user MFA etc..
Do let me know if you have any further questions, I would be happy to help!
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