[Lock] Documentation about PostgreSqlStore and DoctrineDbalPostgreSqlStore is not updated in 6.0

[metaer]

This example is not actual:

$databaseConnectionOrDSN = 'postgresql://myuser:mypassword@localhost:5634/lock';
$store = new PostgreSqlStore($databaseConnectionOrDSN);

Correct way is to use DoctrineDbalPostgreSqlStore with a string like this 'postgresql://myuser:mypassword@localhost:5634/lock'

https://symfony.com/doc/current/components/lock.html#postgresqlstore
symfony/symfony#44535 (comment)

[stof]

note that this applies to 5.4+ rather than 6.0+ (5.4 has a BC layer of course, but the doc should show the non-deprecated way)

[GromNaN]

I do it. PdoStore/DoctrineDbalStore are concerned too.

[GromNaN]

Please review: #16217