Bump "twig/twig" to "^2.9" in order to replace usages of deprecated features.
I am targeting this branch, because the changes are considered BC.
Changelog
### Changed
- Bumped "twig/twig" dependency to "^2.9";
- Changed usages of `{% spaceless %}` tag, which is deprecated as of Twig 1.38 with `{% apply spaceless %}` filter.
Follow up of sonata-project/SonataAdminBundle#5576.
Subject
Bump "twig/twig" to "^2.9" in order to replace usages of deprecated features.
I am targeting this branch, because the changes are considered BC.
Changelog
Follow up of sonata-project/SonataAdminBundle#5576.