Fixes broken tests from symfony/console upgrade

Author: raphaelstolt

tests/Commands/ValidateCommandStdinOptionsTest.php

@@ -44,7 +44,7 @@ private function makeAppWithCommand(string $stdinContent): array
             new Validator(new Archive($this->temporaryDirectory)),
             $fakeInputReader
         );
-        $application->add($command);
+        $application->addCommand($command);
 
         return [$application, $command];
     }

tests/Commands/ValidateCommandTest.php

@@ -2301,7 +2301,7 @@ public function detectsNonGitattributeContentInStdinInput(): void
             $fakeInputReader
         );
 
-        $application->add($analyserCommand);
+        $application->addCommand($analyserCommand);
         $command = $application->find('validate');
 
         $expectedDisplay = <<<CONTENT
@@ -2356,7 +2356,7 @@ public function detectsValidGitattributeContentInStdinInput(): void
             $fakeInputReader
         );
 
-        $application->add($analyserCommand);
+        $application->addCommand($analyserCommand);
         $command = $application->find('validate');
 
         $expectedDisplay = <<<CONTENT
@@ -2444,7 +2444,7 @@ protected function getApplicationWithMockedAnalyser(MockInterface $mockedAnalyse
             new FakeInputReader()
         );
 
-        $application->add($analyserCommand);
+        $application->addCommand($analyserCommand);
 
         return $application;
     }
@@ -2463,7 +2463,7 @@ protected function getApplicationWithMockedArchiveValidator(MockInterface $mocke
             new FakeInputReader()
         );
 
-        $application->add($analyserCommand);
+        $application->addCommand($analyserCommand);
 
         return $application;
     }

tests/TestCase.php

@@ -153,7 +153,7 @@ protected function createTemporaryGlobPatternFile($content)
     protected function getApplication(Command $command): Application
     {
         $application = new Application();
-        $application->add($command);
+        $application->addCommand($command);
 
         return $application;
     }