[Console] Fix tests

Author: chalasr

src/Symfony/Component/Console/Tests/ApplicationTest.php

@@ -79,6 +79,7 @@ protected function tearDown(): void
             pcntl_signal(\SIGTERM, \SIG_DFL);
             pcntl_signal(\SIGUSR1, \SIG_DFL);
             pcntl_signal(\SIGUSR2, \SIG_DFL);
+            pcntl_signal(\SIGALRM, \SIG_DFL);
         }
     }
 

src/Symfony/Component/Console/Tests/ConsoleEventsTest.php

@@ -39,6 +39,7 @@ protected function tearDown(): void
             pcntl_signal(\SIGTERM, \SIG_DFL);
             pcntl_signal(\SIGUSR1, \SIG_DFL);
             pcntl_signal(\SIGUSR2, \SIG_DFL);
+            pcntl_signal(\SIGALRM, \SIG_DFL);
         }
     }
 

src/Symfony/Component/Console/Tests/SignalRegistry/SignalRegistryTest.php

@@ -27,6 +27,7 @@ protected function tearDown(): void
         pcntl_signal(\SIGTERM, \SIG_DFL);
         pcntl_signal(\SIGUSR1, \SIG_DFL);
         pcntl_signal(\SIGUSR2, \SIG_DFL);
+        pcntl_signal(\SIGALRM, \SIG_DFL);
     }
 
     public function testOneCallbackForASignalSignalIsHandled()