Allow jsrouting-bundle 3 (#978)

Author: stephanvierkant

composer.json

@@ -20,7 +20,7 @@
     "require": {
         "php": ">=7.1",
         "doctrine/orm": "^2.5",
-        "friendsofsymfony/jsrouting-bundle": "^1.6|^2.0",
+        "friendsofsymfony/jsrouting-bundle": "^1.6|^2.0|^3.0",
         "symfony/config": "^3.4|^4.1|^5.0",
         "symfony/dependency-injection": "^3.4|^4.1|^5.0",
         "symfony/http-foundation": "^3.4|^4.1|^5.0",