chore(deps): bump golang.org/x/image from 0.0.0-20191206065243-da761ea9ff43 to 0.18.0 in /contribs/gnomd in the go_modules group across 1 directory

chore(deps): bump golang.org/x/image from 0.0.0-20191206065243-da761ea9ff43 to 0.18.0 in /contribs/gnomd in the go_modules group across 1 directory #11428