ci: bump default flux-security version

Problem: flux-security 0.13.0 is installed by default in CI
but flux-core now requires 0.14.0 or greater.

Bump the version.

Author: garlick

src/test/docker/docker-run-checks.sh

@@ -16,7 +16,7 @@ JOBS=2
 MOUNT_HOME_ARGS="--volume=$HOME:$HOME -e HOME"
 
 if test "$PROJECT" = "flux-core"; then
-  FLUX_SECURITY_VERSION=0.13.0
+  FLUX_SECURITY_VERSION=0.14.0
   POISON=t
 fi