Merge branch '6.3' into 6.4

* 6.3:
  [Cache][Lock] Fix PDO store not creating table + add tests
  Closes #51936-Added Missing translations for Czech (cs) in validators.cs.xlf file
  Added missing translations in turkish and updated validators.tr.xlf
  [Serializer] Fix denormalizing date intervals having both weeks and days
  [Validator] updated Turkish translation
  [Serializer] Fix denormalize constructor arguments
  Add some more non-countable English nouns
  Add hint that changing input arguments has no effect
  [DomCrawler] Revert "bug #52579 UriResolver support path with colons"
  [VarExporter] Fix handling mangled property names returned by __sleep()
  Update Github template for 7.1

Author: nicolas-grekas

Event/ConsoleCommandEvent.php

@@ -12,7 +12,10 @@
 namespace Symfony\Component\Console\Event;
 
 /**
- * Allows to do things before the command is executed, like skipping the command or changing the input.
+ * Allows to do things before the command is executed, like skipping the command or executing code before the command is
+ * going to be executed.
+ *
+ * Changing the input arguments will have no effect.
  *
  * @author Fabien Potencier <fabien@symfony.com>
  */