Add CLOUDSTACK_TEMPLATE_URL for testacc github workflow

Author: vishesh92

.github/workflows/testacc.yml

@@ -59,6 +59,7 @@ jobs:
           CLOUDSTACK_USER_ID=$(curl -fs "${CLOUDSTACK_API_URL}?command=listUsers&response=json" -b cookies.txt | jq -r '.listusersresponse.user[0].id')
           CLOUDSTACK_API_KEY=$(curl -s "${CLOUDSTACK_API_URL}?command=getUserKeys&id=${CLOUDSTACK_USER_ID}&response=json" -b cookies.txt | jq -r '.getuserkeysresponse.userkeys.apikey')
           CLOUDSTACK_SECRET_KEY=$(curl -fs "${CLOUDSTACK_API_URL}?command=getUserKeys&id=${CLOUDSTACK_USER_ID}&response=json" -b cookies.txt | jq -r '.getuserkeysresponse.userkeys.secretkey')
+          CLOUDSTACK_TEMPLATE_URL=http://dl.openvm.eu/cloudstack/macchinina/x86_64/macchinina-xen.vhd.bz2
 
           echo "::add-mask::$CLOUDSTACK_API_KEY"
           echo "::add-mask::$CLOUDSTACK_SECRET_KEY"