[data grid] Fix tree data selection bug

[michelengelen]

When a row is not selectable within a parent row it was not performing the parent selection propagation correctly (only showing indeterminate state).

This now selects the parent when all selectable rows are selected, reflecting the correct state.

Fixes #20525

https://stackblitz.com/edit/mflmkyvp-1apuxwoo

[mui-bot]

Deploy preview: https://deploy-preview-20528--material-ui-x.netlify.app/

Bundle size report

Bundle	Parsed size	Gzip size
@mui/x-data-grid	🔺+147B(+0.04%)	🔺+42B(+0.03%)
@mui/x-data-grid-pro	🔺+147B(+0.03%)	🔺+47B(+0.03%)
@mui/x-data-grid-premium	🔺+147B(+0.02%)	🔺+46B(+0.02%)
@mui/x-charts	0B(0.00%)	0B(0.00%)
@mui/x-charts-pro	0B(0.00%)	0B(0.00%)
@mui/x-charts-premium	0B(0.00%)	0B(0.00%)
@mui/x-date-pickers	0B(0.00%)	0B(0.00%)
@mui/x-date-pickers-pro	0B(0.00%)	0B(0.00%)
@mui/x-tree-view	0B(0.00%)	0B(0.00%)
@mui/x-tree-view-pro	0B(0.00%)	0B(0.00%)

Details of bundle changes

Generated by :no_entry_sign: dangerJS against b2c9d1429a2e7b1282e0e0c0141a8830b4f06799

[github-actions[bot]]

This pull request has conflicts, please resolve those before we can evaluate the pull request.

[michelengelen]

Done @cherniavskii ... do you want to check again?