Merge branch '6.0' into 6.1

* 6.0:
  Fixing storage_factory_id
  Fix broken reference to CommandCompletionTester class
  Revert minor change
  [Security] update strategy number
  Add information about flex plugin allowance
  [Security] Update security.rst

Author: javiereguiluz

bundles/best_practices.rst

@@ -235,6 +235,7 @@ with Symfony Flex to install a specific Symfony version:
     export SYMFONY_REQUIRE=5.*
 
     # install Symfony Flex in the CI environment
+    composer global config --no-plugins allow-plugins.symfony/flex true
     composer global require --no-progress --no-scripts --no-plugins symfony/flex
 
     # install the dependencies (using --prefer-dist and --no-progress is

console/input.rst

@@ -371,7 +371,7 @@ Testing the Completion script
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 The Console component comes with a special
-:class:`Symfony\\Component\\Console\\Test\\CommandCompletionTester`` class
+:class:`Symfony\\Component\\Console\\Tester\\CommandCompletionTester`` class
 to help you unit test the completion logic::
 
     // ...

security/voters.rst

@@ -271,7 +271,7 @@ checks if the user is a member of the site and a second one that checks if the u
 is older than 18.
 
 To handle these cases, the access decision manager uses a "strategy" which you can configure.
-There are three strategies available:
+There are four strategies available:
 
 ``affirmative`` (default)
     This grants access as soon as there is *one* voter granting access;

session.rst

@@ -71,7 +71,7 @@ sessions, check their default configuration:
                 // improves the security of the cookies used for sessions
                 ->cookieSecure('auto')
                 ->cookieSamesite(Cookie::SAMESITE_LAX)
-                ->storage_factory_id('session.storage.factory.native')
+                ->storageFactoryId('session.storage.factory.native')
             ;
         };