(chore)maintainers: add newer maintainers for the Litmus websites (#4… #1249

Job	Run time
get-envs	5s
frontend-checks	1m 24s
backend-checks	20s
docker-build-and-push-graphql-server	10m 40s
docker-build-and-push-event-tracker	10m 19s
docker-build-and-push-authentication-server	6m 7s
docker-build-and-push-subscriber	8m 52s
docker-build-and-push-frontend (litmusportal-frontend)	2m 40s
docker-build-and-push-frontend (litmusportal-frontend-path-litmuschaos, /litmuschaos)	2m 31s
	42m 58s

Provide feedback