Adding @stuartpa as reviewer (#2869)

Adding @stuartpa as reviewer. Stuart is involved in MCP capability in
DAB

Author: souvikghosh04

CODEOWNERS

@@ -1,7 +1,7 @@
 # These owners will be the default owners for everything in
 # the repo. Unless a later match takes precedence,
 # review when someone opens a pull request.
-*       @Aniruddh25 @aaronburtle @anushakolan @RubenCerna2079 @souvikghosh04 @akashkumar58 @neeraj-sharma2592 @sourabh1007 @vadeveka @Alekhya-Polavarapu @rusamant 
+*       @Aniruddh25 @aaronburtle @anushakolan @RubenCerna2079 @souvikghosh04 @akashkumar58 @neeraj-sharma2592 @sourabh1007 @vadeveka @Alekhya-Polavarapu @rusamant @stuartpa
 
 code_of_conduct.md @jerrynixon
 contributing.md @jerrynixon