upgrade to Symfony 5.4 and php 8.1

.gitignore

composer.json

composer.lock

config/bundles.php

config/packages/api_platform.yaml

config/packages/dev/hautelook_alice.yaml

config/packages/doctrine_migrations.yaml

config/packages/security.yaml

config/packages/security_checker.yaml

config/packages/twig_extensions.yaml

config/parameters.yaml

config/routes/dev/twig.yaml

config/services.yaml

config/services/dictionary.yaml

public/index.php

src/Application/DataFixtures/ORM/DictionaryProvider.php

src/Application/Dictionary/SimpleDictionary.php

src/Domain/AIPD/Model/AnalyseImpact.php

...y/EventSubscriber/Doctrine/GenerateMaturitySubscriber.php

...tSubscriber/Doctrine/ConformiteOrganisationSubscriber.php