Reuse nsrt/bug-13705.php in rule test instead of duplicating it

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: phpstan-bot

tests/PHPStan/Rules/Comparison/ImpossibleCheckTypeFunctionCallRuleTest.php

@@ -1205,7 +1205,7 @@ public function testBug14429(): void
 	public function testBug13705(): void
 	{
 		$this->treatPhpDocTypesAsCertain = true;
-		$this->analyse([__DIR__ . '/data/bug-13705.php'], []);
+		$this->analyse([__DIR__ . '/../../Analyser/nsrt/bug-13705.php'], []);
 	}
 
 	public function testBug13799(): void