[Turbo] Remove deprecations for 3.0

[smnandre]

Q	A
Bug fix?	no
New feature?	yes
Deprecations?	no
Documentation?	no
Issues	Fix #...
License	MIT

src/Turbo/src/Bridge/Mercure/TurboStreamListenRenderer.php:39

trigger_deprecation('symfony/ux-turbo', '2.9', 'Passing an instance of "%s" as second argument of "%s" is deprecated, pass an instance of "%s" instead.', StimulusTwigExtension::class, __CLASS__, StimulusHelper::class);

[Kocal]

We should add a changelog entry for this, same for other PRs

[Kocal]

Thank you @smnandre.