Reduce bundle size of parser-postcss.js (#12204)

* Extract utils

* Move `utils.js` to `utils/index.js`

src/language-css/printer-postcss.js

@@ -38,9 +38,7 @@ const {
   insideURLFunctionInImportAtRuleNode,
   isKeyframeAtRuleKeywords,
   isWideKeywords,
-  isSCSS,
   isLastNode,
-  isLessParser,
   isSCSSControlDirectiveNode,
   isDetachedRulesetDeclarationNode,
   isRelationalOperatorNode,
@@ -76,8 +74,10 @@ const {
   isAtWordPlaceholderNode,
   isConfigurationNode,
   isParenGroupNode,
-} = require("./utils.js");
+} = require("./utils/index.js");
 const { locStart, locEnd } = require("./loc.js");
+const isLessParser = require("./utils/is-less-parser.js");
+const isSCSS = require("./utils/is-scss.js");
 
 function shouldPrintComma(options) {
   return options.trailingComma === "es5" || options.trailingComma === "all";