[LiveComponent] Fix test Kernel deprecations

[smnandre]

Fix some Kernel deprecation.

But the CS remains, because (and it's kinda weird) PhpCSFixer says

 --- /home/runner/work/ux/ux/src/LiveComponent/tests/Integration/LiveComponentHydratorTest.php
+++ /home/runner/work/ux/ux/src/LiveComponent/tests/Integration/LiveComponentHydratorTest.php
@@ -752,7 +752,7 @@
 
             return HydrationTest::create(new class() {
                 #[LiveProp()]
-                /** @var \Symfony\UX\LiveComponent\Tests\Fixtures\Entity\ProductFixtureEntity[] */
+                /** @var ProductFixtureEntity[] */
                 public array $products = [];
             })
                 ->mountWith(['products' => [$prod1, $prod2, $prod3]])

But if we do that ....

1) Symfony\UX\LiveComponent\Tests\Integration\LiveComponentHydratorTest::testCanDehydrateAndHydrateComponentWithTestCases with data set "Array with objects: (de)hydrates correctly" (Closure Object (...))
LogicException: The LiveProp "products" on component "class@anonymous[...]src/LiveComponent/tests/Integration/LiveComponentHydratorTest.php:753$4c" is an array. We determined the array is full of \ProductFixtureEntity objects, but at least on key had a different value of Symfony\UX\LiveComponent\Tests\Fixtures\Entity\ProductFixtureEntity

[smnandre]

Any idea @kbond @weaverryan ?

[smnandre]

(we should merge this one "now" if we need time to figure out the phpcs bug, as this PR fixes the other CI fails)

[kbond]

Thanks Simon.

[kbond]

Regarding the cs issue - looks the anon class must be the culprit. Bug in symfony/property-access maybe?

[smnandre]

Regarding the cs issue - looks the anon class must be the culprit. Bug in symfony/property-access maybe?

Hmm I feared that answer haha… well, time to discover the internals of a new component :)

[kbond]

I think the easy fix for now would be to use a concrete class instead of anon in this test.

[smnandre]

Ok, will do tonight

[kbond]

Fixed in #1371

[smnandre]

Thank you @kbond !