bumble_experimental/Asha: Test against dual registration of the ASHA

service

AshaService.Register did not check for previous registration;
instead of creating a new service update the information for
a previously registered AshaService instead

Test: atest v2/pandora-prod-team/avatar
Bug: 254077091
Change-Id: Iab9153298f0f96a74bd680e1e71dd90437e64b34