fix: update fetch-cloud-forest.sh to be compatible with old versions of bash
go install github.com/ryanbressler/CloudForest/growforest
# Load the whole go env.
-source <(go env)
+# Not just process substitution because some versions of MacOS ship with older versions of bash, for
+# which `source` only works with regular files.
+# See https://lists.gnu.org/archive/html/bug-bash/2006-01/msg00018.html for detail.
+source /dev/stdin <<<"$(go env)"
# Find the appropriate binary for packaging and output the path.
if [ "$GOOS" == "$GOHOSTOS" ] && [ "$GOARCH" == "$GOHOSTARCH" ]; then
