PHP8.3に更新後に`@runInSeparateProcess`を設定しているテストが落ちる様になった為調査する

class TestTargetClass1
{
    /**
     * target method.
     *
     * @param string $value
     * @return string
     */
    public static function testTargetMethod(
        string $value
    ): string {
        return MockTargetClass1::testMethod($value);
    }
}

namespace Tests\Unit\Path;

use App\Path\TestTargetClass1;
use App\Path\MockTargetClass1;
use Tests\TestCase;
use Mockery;

class MockeryTest extends TestCase
{
    protected function setUp(): void
    {
        parent::setUp();
    }

    protected function tearDown(): void
    {
        Mockery::close();
        parent::tearDown();
    }

    /**
     * data privider for testTargetClass.
     * @return array
     */
    public static function targetClassDataProvider(): array
    {
        return [
            'parameter' => [
                'testParam' => 'testValue',
                'expect' => 'MockValue',
            ],
        ];
    }

    /**
     * test.
     *
     * @dataProvider targetClassDataProvider
     * @runInSeparateProcess
     * @preserveGlobalState disabled
     * @param string $testParam
     * @param string $expect
     * @return void
     */
    public function testTargetClass(
        string $testParam,
        string $expect
    ): void {
        // MockTargetClass1をモック化
        $mock = (new Mockery())->mock('overload:'.MockTargetClass1::class);
        $mock->shouldReceive('testMethod')->once()->andReturn('MockValue');

        $this->assertEquals(TestTargetClass1::testTargetMethod($testParam), $expect);
    }
}

- use Tests\TestCase;
+ use PHPUnit\Framework\TestCase;