docs: Fix missing comma in MCP code snippet (#32126)

the docs now contain valid json

Closes #ISSUE

Release Notes:

- N/A *or* Added/Fixed/Improved ...
274a40b7e0Ben Swift committed on 6/5/2025, 3:00:51 AM· committed by GitHubparent9c7b1d1
1 file changedLine totals unavailable