bug #267 [Symfony 6] Depend on the development version of Sylius (Rafikooo)

This PR was merged into the 1.5-dev branch.

Discussion
----------

| Q               | A
| --------------- | -----
| Branch?         | master
| Bug fix?        | yes
| New feature?    | no
| Related tickets | fixes 5cb7c0e

It will cause a problem with the test app (adding products to the cart) until switching to the stable `Sylius 1.12` version

Commits
-------

d7cfb60 [GitHubActions] Validate composer.json
dbeb9e5 [Maintenance] Depend on the dev Sylius version

Author: GSadee

.github/workflows/build.yml

@@ -151,6 +151,10 @@ jobs:
                 name: Load fixtures in test application
                 run: (cd tests/Application && bin/console sylius:fixtures:load -n)
 
+            -
+                name: Validate composer.json
+                run: composer validate --ansi --strict
+
             -
                 name: Run analysis
                 run: composer analyse

composer.json

@@ -10,7 +10,7 @@
         "phpseclib/phpseclib": "^2.0",
         "polishsymfonycommunity/symfony-mocker-container": "^1.0",
         "sylius-labs/doctrine-migrations-extra-bundle": "^0.1.4 || ^0.2",
-        "sylius/sylius": "~1.11.0 || v1.12.0-rc.1",
+        "sylius/sylius": "~1.11.0 || 1.12.x-dev",
         "symfony/mailer": "^5.4 || ^6.0"
     },
     "require-dev": {