fix: remove unsafe assertion

[lowlydba]

Description

How Has This Been Tested?

Types of changes

• [x] Bug fix (non-breaking change which fixes an issue) - Fixes #
• [ ] New feature (non-breaking change which adds functionality)

Checklist:

• [x] I have read/followed the CONTRIBUTING document.
• [x] I have read/followed the PR Quick Start Guide
• [x] I have added tests to cover my changes or they are N/A.
• [x] I have added a changelog fragment describing the changes.
• [x] New module options/parameters include a version_added property.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (13566b6) 100.00% compared to head (c30a787) 100.00%. Report is 1 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #225 +/- ## ========================================= Coverage 100.00% 100.00% ========================================= Files 33 33 Lines 106 106 ========================================= Hits 106 106 ``` | [Flag](https://app.codecov.io/gh/lowlydba/lowlydba.sqlserver/pull/225/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=John+McCall) | Coverage Δ | | |---|---|---| | [sanity](https://app.codecov.io/gh/lowlydba/lowlydba.sqlserver/pull/225/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=John+McCall) | `100.00% <ø> (ø)` | | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=John+McCall#carryforward-flags-in-the-pull-request-comment) to find out more.

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