Fix FileExcluder on windows

underlying problem was

```
<?php

var_dump(fnmatch(
	'C:\dvl\Workspace\phpstan-src-staabm\tests\PHPStan\File\*',
	'C:\dvl\Workspace\phpstan-src-staabm\tests\PHPStan\File/data/excluded-file.php',
	FNM_NOESCAPE | FNM_CASEFOLD
));

var_dump(fnmatch(
	'C:\dvl\Workspace\phpstan-src-staabm\tests\PHPStan\File\*',
	'C:\dvl\Workspace\phpstan-src-staabm\tests\PHPStan\File\data\excluded-file.php',
	FNM_NOESCAPE | FNM_CASEFOLD
));
```

Author: staabm

src/File/FileExcluder.php

@@ -50,7 +50,7 @@ final class FileExcluder
 	 * @param string[] $analyseExcludes
 	 */
 	public function __construct(
-		FileHelper $fileHelper,
+		private FileHelper $fileHelper,
 		array $analyseExcludes,
 	)
 	{
@@ -89,6 +89,8 @@ public function __construct(
 
 	public function isExcludedFromAnalysing(string $file): bool
 	{
+		$file = $this->fileHelper->normalizePath($file);
+
 		foreach ($this->literalAnalyseExcludes as $exclude) {
 			if (str_starts_with($file, $exclude)) {
 				return true;