fix: update code because of file changes

See codeigniter4#8734

Author: kenjis

system/Commands/Housekeeping/ClearDebugbar.php

@@ -57,7 +57,7 @@ public function run(array $params)
     {
         helper('filesystem');
 
-        if (! delete_files(WRITEPATH . 'debugbar')) {
+        if (! delete_files(WRITEPATH . 'debugbar', false, true)) {
             // @codeCoverageIgnoreStart
             CLI::error('Error deleting the debugbar JSON files.');
             CLI::newLine();

tests/system/Commands/ClearDebugbarTest.php

@@ -61,7 +61,7 @@ public function testClearDebugbarWorks(): void
         $result = $this->getStreamFilterBuffer();
 
         $this->assertFileDoesNotExist(WRITEPATH . 'debugbar' . DIRECTORY_SEPARATOR . "debugbar_{$this->time}.json");
-        $this->assertFileExists(WRITEPATH . 'debugbar' . DIRECTORY_SEPARATOR . '.gitkeep');
+        $this->assertFileExists(WRITEPATH . 'debugbar' . DIRECTORY_SEPARATOR . 'index.html');
         $this->assertStringContainsString('Debugbar cleared.', $result);
     }
 }