Update greetings.yaml email address (ultralytics#6412)

* Update `greetings.yaml` email address

* Update greetings.yml

.github/workflows/greetings.yml

@@ -31,7 +31,7 @@ jobs:
 
             If this is a custom training ❓ Question, please provide as much information as possible, including dataset images, training logs, screenshots, and a public link to online [W&B logging](https://github.com/ultralytics/yolov5/wiki/Train-Custom-Data#visualize) if available.
 
-            For business inquiries or professional support requests please visit https://ultralytics.com or email Glenn Jocher at glenn.jocher@ultralytics.com.
+            For business inquiries or professional support requests please visit https://ultralytics.com or email support@ultralytics.com.
 
             ## Requirements