Throw `DuplicateTransitionException` on duplicate state transitions in `StateConfig` #97

Job	Run time
Fix PHP codestyle with php-cs-fixer	15s
Code Coverage	44s
Validate composer dependencies	8s
Normalize composer.json	16s
PHPStan on PHP 8.1 with Laravel ^9.51	20s
Tests - PHP 8.1, Illuminate , lowest	39s
PHPStan on PHP 8.1 with Laravel ^10	21s
Tests - PHP 8.1, Illuminate , lowest	44s
PHPStan on PHP 8.2 with Laravel ^9.51	20s
PHPStan on PHP 8.2 with Laravel ^10	30s
Tests - PHP 8.1, Illuminate , highest	38s
PHPStan on PHP 8.2 with Laravel ^11	21s
Tests - PHP 8.1, Illuminate , highest	38s
PHPStan on PHP 8.3 with Laravel ^9.51	21s
Tests - PHP 8.2, Illuminate , lowest	47s
PHPStan on PHP 8.3 with Laravel ^10	27s
PHPStan on PHP 8.3 with Laravel ^11	27s
Tests - PHP 8.2, Illuminate , lowest	45s
Tests - PHP 8.2, Illuminate , lowest	40s
Tests - PHP 8.2, Illuminate , highest	44s
Tests - PHP 8.2, Illuminate , highest	36s
Tests - PHP 8.2, Illuminate , highest	45s
Tests - PHP 8.3, Illuminate , lowest	37s
Tests - PHP 8.3, Illuminate , lowest	43s
Tests - PHP 8.3, Illuminate , lowest	37s
Tests - PHP 8.3, Illuminate , highest	42s
Tests - PHP 8.3, Illuminate , highest	38s
Tests - PHP 8.3, Illuminate , highest	42s
	15m 25s

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