bgpd: Fix remote-as with peer-group (backport #17542) #2947

Job	Run time
Build the ubuntu 22.04 docker image	6m 44s
Build the ubuntu 22.04 docker image	6m 44s
Build the ubuntu 22.04 docker image	6m 44s
Test ubuntu docker image	51m 57s
Test ubuntu docker image	53m 27s
Test ubuntu docker image	50m 47s
	2h 56m 23s

Provide feedback