Merge pull request #673 from ruudk/patch-5

Allow `psr/log` v2 and v3

Author: mihaileu

composer.json

@@ -16,7 +16,7 @@
         "symfony/yaml":                 "^4.3|^5.0",
         "symfony/console":              "^4.3|^5.0",
         "php-amqplib/php-amqplib":      "^2.12.2|^3.0",
-        "psr/log":                      "^1.0",
+        "psr/log":                      "^1.0 || ^2.0 || ^3.0",
         "symfony/http-kernel":          "^4.4|^5.0",
         "symfony/framework-bundle":     "^4.4|^5.0"
     },