Set up branch to become 5.0 in the future

composer.json

@@ -25,16 +25,16 @@
         "symfony/translation": "^5.0",
         "symfony/translation-contracts": "^2.0",
         "twig/twig": "^3.0",
-        "ibexa/core": "~4.6.0@dev",
-        "ibexa/content-forms": "~4.6.0@dev",
-        "ibexa/rest": "~4.6.0@dev",
-        "ibexa/http-cache": "~4.6.0@dev"
+        "ibexa/core": "~5.0.0@dev",
+        "ibexa/content-forms": "~5.0.0@dev",
+        "ibexa/rest": "~5.0.0@dev",
+        "ibexa/http-cache": "~5.0.0@dev"
     },
     "require-dev": {
         "dama/doctrine-test-bundle": "^6.7.5",
         "ibexa/ci-scripts": "^0.2@dev",
-        "ibexa/doctrine-schema": "~4.6.0@dev",
-        "ibexa/solr": "~4.6.0@dev",
+        "ibexa/doctrine-schema": "~5.0.0@dev",
+        "ibexa/solr": "~5.0.0@dev",
         "phpstan/phpstan": "^1.9",
         "phpstan/phpstan-symfony": "^1.2",
         "phpstan/phpstan-phpunit": "^1.3",
@@ -76,7 +76,7 @@
     },
     "extra": {
         "branch-alias": {
-            "dev-main": "4.6.x-dev"
+            "dev-main": "5.0.x-dev"
         }
     },
     "config": {