Migrate ccs v3 to @adobe/css-tools v4

Author: Jean-Philippe Zolesio

package.json

@@ -35,7 +35,7 @@
     "@types/testing-library__jest-dom": "^5.9.1",
     "aria-query": "^5.0.0",
     "chalk": "^3.0.0",
-    "css": "^3.0.0",
+    "@adobe/css-tools": "^4.0.0",
     "css.escape": "^1.5.1",
     "dom-accessibility-api": "^0.5.6",
     "lodash": "^4.17.15",

src/utils.js

@@ -1,5 +1,5 @@
 import redent from 'redent'
-import cssParse from 'css/lib/parse'
+import {parse} from '@adobe/css-tools/dist/cjs/cssTools'
 import isEqual from 'lodash/isEqual'
 
 class GenericTypeError extends Error {
@@ -100,7 +100,7 @@ class InvalidCSSError extends Error {
 }
 
 function parseCSS(css, ...args) {
-  const ast = cssParse(`selector { ${css} }`, {silent: true}).stylesheet
+  const ast = parse(`selector { ${css} }`, {silent: true}).stylesheet
 
   if (ast.parsingErrors && ast.parsingErrors.length > 0) {
     const {reason, line} = ast.parsingErrors[0]