SCSS: Fixed exponential time failing of url pattern (#1938)

The url pattern used to fail in exponential time for some input strings. This fixes this issue.
PrismJS · Jun 12, 2019 · 4b6b6e8 · 4b6b6e8
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diff --git a/components/prism-scss.js b/components/prism-scss.js
@@ -11,7 +11,7 @@ Prism.languages.scss = Prism.languages.extend('css', {
 		}
 	},
 	// url, compassified
-	'url': /(?:[-a-z]+-)*url(?=\()/i,
+	'url': /(?:[-a-z]+-)?url(?=\()/i,
 	// CSS selector regex is not appropriate for Sass
 	// since there can be lot more things (var, @ directive, nesting..)
 	// a selector must start at the end of a property or after a brace (end of other rules or nesting)

diff --git a/components/prism-scss.min.js b/components/prism-scss.min.js