Update author title to Senior Software Engineer

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

Author: Rob-Codat

blog/authors.yml

@@ -192,6 +192,6 @@ brucepouncey:
 
 rharrison:
   name: Rob Harrison
-  title: Software Engineer, Platform
+  title: Senior Software Engineer
   url: https://github.com/Rob-Codat
   image_url: https://github.com/Rob-Codat.png