Update Circle CI Host Compiler

Author: JinShil

.circleci/run.sh

@@ -2,7 +2,7 @@
 
 set -uexo pipefail
 
-HOST_DMD_VER=2.072.2 # same as in dmd/src/posix.mak
+HOST_DMD_VER=2.079.1
 CURL_USER_AGENT="CirleCI $(curl --version | head -n 1)"
 N=4
 CIRCLE_NODE_INDEX=${CIRCLE_NODE_INDEX:-0}