Allow symfony-7 in composer.json

[mkilmanas]

Changes

This is simply allowing Symfony 7 in composer.json - could not find any problems or incompatibilities at this point.

• composer.json updated
• all tests (composer test) are passing
• tried it out on a minimal Symfony 7 project - no problems found
  • though I have only verified the JWT authentication use-case

References

#182

Testing

Attempted to install this bundle on a small Symfony project and perform JWT authentication. Other use-cases should be verified.

Maybe instead of merging to main branch, this should be "quarantined" in a dedicated branch (e.g. symfony7) of this main repository - that way other people would be able to install this version via composer by requiring auth0/symfony: dev-symfony7 and then test on their applications and their use-cases?

[ ] This change adds test coverage

[x] This change has been tested on the latest version of Symfony

Checklist

[x] I have read the Auth0 general contribution guidelines

[x] I have read the Auth0 Code of Conduct

[x] All existing and new tests complete without errors