Merge branch '7.4' into 8.0

* 7.4:
  Fix typo
  fix package name

Author: OskarStark

components/lock.rst

@@ -705,7 +705,7 @@ The DynamoDbStore saves locks on a Amazon DynamoDB table. Install it by running:
 
 .. code-block:: terminal
 
-    $ composer require symfony/amazon-dynamodb-lock
+    $ composer require symfony/amazon-dynamo-db-lock
 
 It requires a `DynamoDbClient`_ instance or a `Data Source Name (DSN)`_.
 This store does not support blocking, and expects a TTL to avoid stalled locks::

serializer.rst

@@ -973,7 +973,7 @@ works just like serializing a single object::
     $person2 = new Person('John Smith', 52, true);
 
     $persons = [$person1, $person2];
-    $JsonContent = $serializer->serialize($persons, 'json');
+    $jsonContent = $serializer->serialize($persons, 'json');
 
     // $jsonContent contains [{"name":"Jane Doe","age":39,"sportsman":false},{"name":"John Smith","age":52,"sportsman":true}]