Add env variable for router default_uri configuration

symfony/routing/7.0/config/packages/routing.yaml

@@ -2,7 +2,7 @@ framework:
     router:
         # Configure how to generate URLs in non-HTTP contexts, such as CLI commands.
         # See https://symfony.com/doc/current/routing.html#generating-urls-in-commands
-        #default_uri: http://localhost
+        default_uri: '%env(DEFAULT_URI)%'
 
 when@prod:
     framework:

symfony/routing/7.0/manifest.json

@@ -5,5 +5,10 @@
     "aliases": ["router"],
     "conflict": {
         "symfony/framework-bundle": "<7.0"
+    },
+    "env": {
+        "#1": "Configure how to generate URLs in non-HTTP contexts, such as CLI commands.",
+        "#2": "See https://symfony.com/doc/current/routing.html#generating-urls-in-commands",
+        "DEFAULT_URI": "http://localhost"
     }
 }