False positive on grid-template-rows: masonry

When i use CSS property grid-template-rows with value masonry, I would expect doiuse to warn about it, since it's not supported basically everywhere (see on [Caniuse DB](https://caniuse.com/mdn-css_properties_grid-template-rows_masonry)), However, no warning is issued.

Minimal reproducible example:
```
// src/global.css
.test {
grid-template-rows: masonry;
}

doiuse --browsers "defaults, not op_mini all" src/global.css
```

Expected behavior: CSS grid-template-rows: masonry not supported
Actual behavior: no output