Updating circleci docker image
Updating circleci docker image

Looking at build dashboard, its complaining about depricated
docker image.  Plus, I need at least golang-1.18 for the experimental
package I am using.

Signed-off-by: Eric Van Hensbergen <08ae98fb185c92c4e7c3d98ea7df248c1b1ab2b3@arm.com>

u-root/cpu,u-root/cpu,u-root/cpu