fix method signatures

Tests/CI/GithubActionReporterTest.php

@@ -34,7 +34,7 @@ public function testIsGithubActionEnvironment()
     /**
      * @dataProvider annotationsFormatProvider
      */
-    public function testAnnotationsFormat(string $type, string $message, ?string $file = null, ?int $line = null, ?int $col = null, string $expected)
+    public function testAnnotationsFormat(string $type, string $message, ?string $file, ?int $line, ?int $col, string $expected)
     {
         $reporter = new GithubActionReporter($buffer = new BufferedOutput());