minor #10836 Do not use deprecated Symfony events (pamil)
minor #10836 Do not use deprecated Symfony events (pamil)

This PR was merged into the 1.5-dev branch.

Discussion
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Commits
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89a0d6e246feb2a078a78a39b4c4177414e3b017 Do not use deprecated Symfony events

Sylius/SyliusAdminBundle,Sylius/SyliusAdminBundle