bumped Symfony version to 5.1.2

Author: fabpot

src/Symfony/Component/HttpKernel/Kernel.php

@@ -73,12 +73,12 @@ abstract class Kernel implements KernelInterface, RebootableInterface, Terminabl
 
     private static $freshCache = [];
 
-    const VERSION = '5.1.1';
-    const VERSION_ID = 50101;
+    const VERSION = '5.1.2-DEV';
+    const VERSION_ID = 50102;
     const MAJOR_VERSION = 5;
     const MINOR_VERSION = 1;
-    const RELEASE_VERSION = 1;
-    const EXTRA_VERSION = '';
+    const RELEASE_VERSION = 2;
+    const EXTRA_VERSION = 'DEV';
 
     const END_OF_MAINTENANCE = '01/2021';
     const END_OF_LIFE = '01/2021';