chore(RHOAIENG-49224): Update approvers and reviewers

Signed-off-by: Pat O'Connor <paoconno@redhat.com>

Author: chipspeak

OWNERS

@@ -1,25 +1,18 @@
 approvers:
-  - astefanutti
-  - Bobbins228
   - CathalOConnorRH
   - chipspeak
-  - ChristianZaccaria
-  - dimakis
-  - Fiona-Waters
-  - franciscojavierarceo
-  - kpostoffice
   - kryanbeane
   - laurafitzgerald
   - pawelpaszki
   - pmccarthy
   - szaher
-  - varshaprasad96
 reviewers:
   - astefanutti
   - Bobbins228
   - CathalOConnorRH
   - chipspeak
   - ChristianZaccaria
+  - DavidAdaRH
   - dimakis
   - Fiona-Waters
   - franciscojavierarceo