Update ownership.yaml

Author: lindluni

ownership.yaml

@@ -6,7 +6,7 @@ ownership:
   maintainer: robandpdx
   team: github/ps-amer
   team_slack: services-delivery
-  exec_sponsor: naval-gupta
+  exec_sponsor: scotcar
   repo: https://github.com/github/emergency-pull-request-probot-app
   sev1:
     issue: https://github.com/github/emergency-pull-request-probot-app/issues 
@@ -19,4 +19,4 @@ ownership:
     slack: services-delivery
     tta: '7 business days'
   qos: experimental
-  tier: 3
+  tier: 3