Fix -x test file permissions (#103)

* Fix -x test file permissions

* Rename non-html expected files to txt

Author: mvorisek

tests/SqlFormatterTest.php

@@ -131,19 +131,19 @@ public static function formatHighlightData(): Generator
     /** @return Generator<mixed[]> */
     public static function highlightCliData(): Generator
     {
-        return self::fileDataProvider('clihighlight.html');
+        return self::fileDataProvider('clihighlight.txt');
     }
 
     /** @return Generator<mixed[]> */
     public static function formatData(): Generator
     {
-        return self::fileDataProvider('format.html');
+        return self::fileDataProvider('format.txt');
     }
 
     /** @return Generator<mixed[]> */
     public static function compressData(): Generator
     {
-        return self::fileDataProvider('compress.html');
+        return self::fileDataProvider('compress.txt');
     }
 
     /** @return Generator<mixed[]> */