Add dgp10801 to CODEOWNERS file

Co-authored-by: Prekshith-Microsoft <216912978+Prekshith-Microsoft@users.noreply.github.com>

Author: Copilot

.github/CODEOWNERS

@@ -2,5 +2,5 @@
 # Each line is a file pattern followed by one or more owners.
 
 # These owners will be the default owners for everything in the repo.
-* @toherman-msft @Avijit-Microsoft @Roopan-Microsoft @Prajwal-Microsoft @Vinay-Microsoft @malrose07 @aniaroramsft @nchandhi
+* @toherman-msft @Avijit-Microsoft @Roopan-Microsoft @Prajwal-Microsoft @Vinay-Microsoft @malrose07 @aniaroramsft @nchandhi @dgp10801