Convert ndarray to scalar to avoid deprecation warning

[Prtm2110]

Description

This PR fixes a Numpy deprecation warning by converting ndarray values to scalars in the record method.

Changes- Updated record method to convert ndarray to scalar using val.item() before assignment. Reason- Prevents future errors due to deprecated implicit array-to-scalar conversions in Numpy.

Related Issue

• [x] Closes #7369
• [ ] 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

Type of change

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

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📚 Documentation preview 📚: https://pymc--7375.org.readthedocs.build/en/7375/

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