Add symfony 7.1 support

Symfony 6 support

1.1.1

* ce75c40: php8 (#5) - Kim Pepper

1.1.0

* 6fdec13: Adds symfony 5 support (#3) - Kim Pepper

1.0.1

* 7aea656: Handle empty values (#2) - Kim Pepper

1.0.0

* 36273bc: Support symfony 4 - Kim Pepper
* 23e6389: Update circleci config (#1) - Kim Pepper

1.0.0-alpha1

Initial release