This PR was merged into the 2.x branch.

Discussion
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 Tests on Symfony 8 stable

| Q              | A
| -------------- | ---
| Bug fix?       | no
| New feature?   | no <!-- please update src/**/CHANGELOG.md files -->
| Deprecations?  | no <!-- if yes, also update UPGRADE-*.md and src/**/CHANGELOG.md -->
| Documentation? | no <!-- required for new features, or documentation updates -->
| Issues         | Fix #... <!-- prefix each issue number with "Fix #", no need to create an issue if none exist, explain below instead -->
| License        | MIT

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The following jobs are still impossible to make them green for the following reasons:
- Functional Tests / turbo-tests (8.4, stable): waiting for symfony/panther#678
- Functional Tests / turbo-tests (8.5, stable): sam as above
- Functional Tests / turbo-tests (dev, 8.5): same as above
- Unit Tests / php (8.4, 8.0.*) : waiting for some `zenstruck/*` packages to be compatible with Symfony 8, and `spatie/phpunit-snapshot-assertions` (but couldn't be installed unless we require PHPUnit 10)
- Unit Tests / php (8.5, 8.0.*) : same as above

Commits
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724429c Tests on Symfony 8 stable