Fix typo in Google Generative AI conversation: intead -> instead (#140398)

homeassistant/components/google_generative_ai_conversation/strings.json

@@ -70,7 +70,7 @@
   "issues": {
     "deprecated_image_filename_parameter": {
       "title": "Deprecated 'image_filename' parameter",
-      "description": "The 'image_filename' parameter in Google Generative AI actions is deprecated. Please edit scripts and automations to use 'filenames' intead."
+      "description": "The 'image_filename' parameter in Google Generative AI actions is deprecated. Please edit scripts and automations to use 'filenames' instead."
     }
   }
 }