Enable shorthands in `declaration-strict-value` linter (#27597)
Enable [shorthand
matching](https://github.com/AndyOGo/stylelint-declaration-strict-value#expandshorthand)
in this lint rule and match color properties by regex. Patterns like
this will now fail lint:
```css
background: #123456;
border: 1px sold rgba(0,0,0,0);
```
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