Cache tridiagonal solve in numba mode

[jessegrabowski]

Description

I missed these dispatches in #1807. All required lapack functions were already handled, so it's just changing the decorator.

Related Issue

• Closes #
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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
• Maintenance
• Other (please specify):