config.tf: bump monitoring version to support full host+port
config.tf: bump monitoring version to support full host+port

coreos/tectonic-installer,aknuds1/tectonic-installer,aknuds1/tectonic-installer,coreos/tectonic-installer,aknuds1/tectonic-installer,coreos/tectonic-installer,coreos/tectonic-installer,aknuds1/tectonic-installer,aknuds1/tectonic-installer,coreos/tectonic-installer