BrushableBlock's codec misspells 'completed' as 'comleted'

The codec for BrushableBlock misspells the word 'completed' as 'comleted' in the field `brush_comleted_sound`. The field should be named `brush_completed_sound`.

This can be seen in the `blocks.json` datagen report, under Suspicious Sand and Suspicious Gravel.

Attached is a screenshot taken from a mapping tool, showcasing this misspelling in the code, as well as a screenshot of this misspelling in the datagen report.