do not allow symfony/json-encoder 7.4 yet

The component is experimental. Claiming to be compatible with 7.4 could
lead to having to change a stable 7.3 release of the FrameworkBundle if
the JsonEncoder component introduced BC breaks in 7.4.

Author: xabbuh

src/Symfony/Bundle/FrameworkBundle/composer.json

@@ -69,7 +69,7 @@
         "symfony/workflow": "^6.4|^7.0",
         "symfony/yaml": "^6.4|^7.0",
         "symfony/property-info": "^6.4|^7.0",
-        "symfony/json-encoder": "^7.3",
+        "symfony/json-encoder": "7.3.*",
         "symfony/uid": "^6.4|^7.0",
         "symfony/web-link": "^6.4|^7.0",
         "symfony/webhook": "^7.2",
@@ -88,6 +88,7 @@
         "symfony/dom-crawler": "<6.4",
         "symfony/http-client": "<6.4",
         "symfony/form": "<6.4",
+        "symfony/json-encoder": ">=7.4",
         "symfony/lock": "<6.4",
         "symfony/mailer": "<6.4",
         "symfony/messenger": "<6.4",