[Autocomplete][Turbo] Remove BC layers for methods and parameters

[Kocal]

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

Forgotten from #2754

EDIT: failing checks PHPStan & Turbo tests will be fixed in #3185

[Copilot]

Pull request overview

This PR removes backward compatibility (BC) layers for the Turbo and Autocomplete packages as part of the preparation for Symfony UX 3.0. The changes make previously optional method parameters mandatory and remove deprecated interfaces that were used to maintain backward compatibility.

Key Changes:

• Made $eventSourceOptions parameter mandatory in TurboStreamListenRendererInterface::renderTurboStreamListen()
• Made getAttributes() and getGroupBy() methods mandatory in EntityAutocompleterInterface
• Removed the TurboStreamListenRendererWithOptionsInterface marker interface

Reviewed changes

Copilot reviewed 11 out of 11 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
src/Turbo/src/Twig/TurboStreamListenRendererInterface.php	Added mandatory $eventSourceOptions parameter with type hint and PHPDoc
src/Turbo/src/Twig/TurboStreamListenRendererWithOptionsInterface.php	Removed deprecated marker interface that extended the base interface
src/Turbo/src/Twig/TurboRuntime.php	Removed BC layer checking for TurboStreamListenRendererWithOptionsInterface
src/Turbo/src/Bridge/Mercure/TurboStreamListenRenderer.php	Updated implementation to use standard parameter instead of func_get_arg()
src/Turbo/tests/Twig/TurboRuntimeTest.php	Updated test mock to use base interface instead of deprecated one
src/Autocomplete/src/EntityAutocompleterInterface.php	Uncommented getAttributes() and getGroupBy() method declarations
src/Autocomplete/src/Form/WrappedEntityTypeAutocompleter.php	Added getAttributes() implementation and removed BC layer for form option lookup
src/Autocomplete/src/AutocompleteResultsExecutor.php	Removed method_exists() checks for getAttributes() and getGroupBy()
src/Autocomplete/src/Form/BaseEntityAutocompleteType.php	Added additional_attributes form option with type validation
src/Turbo/CHANGELOG.md	Documented removal of BC layer for $eventSourceOptions parameter
src/Autocomplete/CHANGELOG.md	Documented removal of BC layers for interface methods

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[Copilot]

The getGroupBy() method should use PHPDoc comment syntax (/** and */) instead of block comment syntax (/* and */) to maintain consistency with other methods in the interface and to allow proper documentation generation.

Suggested change

	/*
	/**

[Copilot]

The getAttributes() method declares a return type of array (as per the interface), but this code path returns $attributesOption as-is when it's not null, not an array, and not callable. This could potentially return a non-array value, causing a type error. Consider either:

1. Removing this fallback return and throwing an exception for invalid types, or
2. Casting the value to an array (e.g., return (array) $attributesOption;)

Suggested change

	return $attributesOption;
	return (array) $attributesOption;