Changed the way getSniffClassName method is called from self to static so that when the method is overridden it uses the overridden method

Author: Gido2935

SlevomatCodingStandard/Sniffs/TestCase.php

@@ -46,7 +46,7 @@ protected static function checkFile(string $filePath, array $sniffProperties = [
 			$codeSniffer->ruleset->ruleset[self::getSniffName()]['properties'] = $sniffProperties;
 		}
 
-		$sniffClassName = self::getSniffClassName();
+		$sniffClassName = static::getSniffClassName();
 		/** @var Sniff $sniff */
 		$sniff = new $sniffClassName();
 
@@ -147,15 +147,15 @@ private static function getSniffName(): string
 				'',
 				'',
 			],
-			self::getSniffClassName()
+			static::getSniffClassName()
 		);
 	}
 
 	private static function getSniffClassReflection(): ReflectionClass
 	{
 		static $reflections = [];
 
-		$className = self::getSniffClassName();
+		$className = static::getSniffClassName();
 
 		return $reflections[$className] ?? $reflections[$className] = new ReflectionClass($className);
 	}