Accepts the invitation to be a member account and be monitored by the Security Hub master account that the invitation was sent from.
securityhub_accept_invitation(MasterId, InvitationId)
[required] The account ID of the Security Hub master account that sent the invitation.
[required] The ID of the invitation sent from the Security Hub master account.
svc$accept_invitation( MasterId = "string", InvitationId = "string" )
When the member account accepts the invitation, permission is granted to the master account to view findings generated in the member account.