fix(deps): update dependency symfony/console to v7 (GoogleCloudPlatform#2009)

Author: renovate-bot

dialogflow/composer.json

@@ -1,7 +1,7 @@
 {
     "require": {
         "google/cloud-dialogflow": "^2.0",
-        "symfony/console": "^5.0"
+        "symfony/console": "^7.0"
     },
     "autoload": {
         "files": [