Update storyblok env

Author: apfelbox

docs/php/symfony/storyblok/index.mdx

@@ -35,7 +35,7 @@ Then add the base config in `config/packages/storyblok.yaml`:
 
 ```yaml
 storyblok:
-    space_id: "%env(int:STORYBLOK_SPACE_ID)%"
+    space_id: "%env(STORYBLOK_SPACE_ID)%"
     management_token: "%env(STORYBLOK_MANAGEMENT_TOKEN)%"
     content_token: "%env(STORYBLOK_CONTENT_TOKEN)%"
 ```