Update middlewares/negotiation requirement from ^1.1 to ^2.0

Updates the requirements on middlewares/negotiation to permit the latest version.

Signed-off-by: dependabot-preview[bot] <[email protected]>

composer.json

@@ -30,7 +30,7 @@
         "jms/serializer": "^3.4",
         "lcobucci/coding-standard": "^3.1",
         "league/plates": "^3.3",
-        "middlewares/negotiation": "^1.1",
+        "middlewares/negotiation": "^2.0",
         "phpstan/phpstan": "^0.11",
         "phpstan/phpstan-deprecation-rules": "^0.11",
         "phpstan/phpstan-phpunit": "^0.11",