Install aptly when running directly in agent

Author: mrmr1993

buildkite/scripts/run-test-executive-local.sh

@@ -40,7 +40,7 @@ export DEBIAN_FRONTEND=noninteractive
 rm -f /etc/apt/sources.list.d/hashicorp.list
 
 apt-get update
-apt-get install -y git apt-transport-https ca-certificates tzdata curl
+apt-get install -y git apt-transport-https ca-certificates aptly tzdata curl
 
 TESTNET_NAME="berkeley"