[Fix] Support import-lazy bundler format (#6449)

Co-authored-by: Masafumi Koba <473530+ybiquitous@users.noreply.github.com>

.changeset/poor-monkeys-begin.md

@@ -0,0 +1,5 @@
+---
+"stylelint": patch
+---
+
+Fixed: usage of the `import-lazy` package to fit bundlers

lib/formatters/index.js

@@ -1,18 +1,16 @@
 'use strict';
 
-const _importLazy = require('import-lazy');
-
-const importLazy = _importLazy(require);
+const importLazy = require('import-lazy');
 
 /** @type {typeof import('stylelint').formatters} */
 const formatters = {
-	compact: importLazy('./compactFormatter'),
-	github: importLazy('./githubFormatter'),
-	json: importLazy('./jsonFormatter'),
-	string: importLazy('./stringFormatter'),
-	tap: importLazy('./tapFormatter'),
-	unix: importLazy('./unixFormatter'),
-	verbose: importLazy('./verboseFormatter'),
+	compact: importLazy(() => require('./compactFormatter'))(),
+	github: importLazy(() => require('./githubFormatter'))(),
+	json: importLazy(() => require('./jsonFormatter'))(),
+	string: importLazy(() => require('./stringFormatter'))(),
+	tap: importLazy(() => require('./tapFormatter'))(),
+	unix: importLazy(() => require('./unixFormatter'))(),
+	verbose: importLazy(() => require('./verboseFormatter'))(),
 };
 
 module.exports = formatters;