allow sc 5 (#26)

Author: nick-zh

composer.json

@@ -15,7 +15,7 @@
     ],
     "require": {
         "flix-tech/avro-php": "^3.0|^4.0",
-        "symfony/console": "^4.3",
+        "symfony/console": "^4.3|^5.1",
         "pimple/pimple": "^3.2",
         "jobcloud/php-kafka-schema-registry-client": "^0.1",
         "guzzlehttp/guzzle": "^6.3",