test(dump): replace @dataProvider annotations with #[DataProvider] attributes

The installed PHPUnit (12.x, ahead of this plugin's ^10.0 dev
constraint) no longer parses the @dataProvider PHPDoc annotation,
so both tests silently ran their data-provider method with zero
arguments and failed with ArgumentCountError.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

tests/Service/DumpFilenameParserTest.php

@@ -3,6 +3,7 @@
 namespace AeonDumpManager\Tests\Service;
 
 use AeonDumpManager\Service\DumpFilenameParser;
+use PHPUnit\Framework\Attributes\DataProvider;
 use PHPUnit\Framework\TestCase;
 
 class DumpFilenameParserTest extends TestCase
@@ -29,9 +30,7 @@ class DumpFilenameParserTest extends TestCase
         self::assertEquals($dateTime, $this->parser->parse($filename));
     }
 
-    /**
-     * @dataProvider invalidFilenameProvider
-     */
+    #[DataProvider('invalidFilenameProvider')]
     public function testParseRejectsInvalidFilenames(string $filename): void
     {
         self::assertNull($this->parser->parse($filename));