Allow v3 contracts where possible

Author: derrabus

composer.json

@@ -20,7 +20,7 @@
         "ext-xml": "*",
         "symfony/config": "^4.4|^5.0|^6.0",
         "symfony/dependency-injection": "^5.3|^6.0",
-        "symfony/deprecation-contracts": "^2.1",
+        "symfony/deprecation-contracts": "^2.1|^3",
         "symfony/event-dispatcher": "^5.1|^6.0",
         "symfony/http-kernel": "^5.3|^6.0",
         "symfony/http-foundation": "^5.3|^6.0",