Test for expected exception instead of xfail

[nhan295]

Description

Related Issue

• Closes Test for expected exception #1109
• Related to #

Checklist

• Checked that the pre-commit linting/style checks pass
• Included tests that prove the fix is effective or that the new feature works
• Added necessary documentation (docstrings and/or example notebooks)
• If you are a pro: each commit corresponds to a relevant logical change

Modules affected

• MMM
• CLV

Type of change

• New feature / enhancement
• Bug fix
• Documentation
• Maintenance
• Other (please specify):

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📚 Documentation preview 📚: https://pymc-marketing--1114.org.readthedocs.build/en/1114/

[juanitorduz]

Thank you @nhan295 ! I think is almost there.

[wd60622]

pre-commit.ci autofix

[wd60622]

pre-commit.ci autofix

[wd60622]

FYI @nhan295 run pre-commit install locally to get rid the pre-commit failures

[juanitorduz]

Thank you @nhan295 !