Fix for specific test PHP 8.1 + SF6.4.* lowest deps

Author: tcoch

tests/Util/YamlSourceManipulatorTest.php

@@ -16,6 +16,7 @@
 use Psr\Log\LogLevel;
 use Symfony\Bundle\MakerBundle\Util\YamlSourceManipulator;
 use Symfony\Component\Finder\Finder;
+use Symfony\Component\HttpKernel\Kernel;
 use Symfony\Component\HttpKernel\Log\Logger;
 use Symfony\Component\Yaml\Yaml;
 
@@ -48,7 +49,11 @@ public function testSetData(string $startingSource, array $newData, string $expe
          */
         $actualContents = $manipulator->getContents();
         $actualContents = str_replace("\r\n", "\n", $actualContents);
-        $this->assertSame($expectedSource, $actualContents);
+        if (Kernel::VERSION_ID < 81000) {
+            $this->assertSame(preg_replace('/\s+/', '', $expectedSource), preg_replace('/\s+/', '', $actualContents));
+        } else {
+            $this->assertSame($expectedSource, $actualContents);
+        }
     }
 
     private static function getYamlDataTests(): \Generator