(CSS) Corner-shape attribute is missing

[pavel-klavik]

Describe the issue
Corner-shape attribute was recently added to CSS: https://developer.mozilla.org/en-US/docs/Web/CSS/corner-shape. It is not in the list of attributes in https://github.com/highlightjs/highlight.js/blob/main/src/languages/lib/css-shared.js. There are also per-corner attributes corner-top-left-shape, corner-top-right-shape, corner-bottom-left-shape, and corner-bottom-right-shape.

Sample Code to Reproduce

.rounded-rect {
  corner-shape: squircle;
  border-radius: 16px;
}