Wrong detection for table rows.

### Bug
Sometimes docling will merge 2 rows into one for a complex table.

### Steps to reproduce
Here's the example: https://www2.census.gov/library/publications/2024/demo/acsbr-023.pdf
Please access table 1 in page no 3.

Here's the debug outlines for this table:

### Docling version
2.28.4

### Python version
3.10.11