use (de)serialization v3

Author: dominikzogg

composer.json

@@ -11,9 +11,9 @@
     ],
     "require": {
         "php": "^7.2",
-        "chubbyphp/chubbyphp-deserialization": "^3.0@dev",
+        "chubbyphp/chubbyphp-deserialization": "^3.0",
         "chubbyphp/chubbyphp-negotiation": "^1.7",
-        "chubbyphp/chubbyphp-serialization": "^3.0@dev",
+        "chubbyphp/chubbyphp-serialization": "^3.0",
         "psr/http-factory": "^1.0.1",
         "psr/http-message": "^1.0.1",
         "psr/http-server-middleware": "^1.0.1",