Update Clear Linux OS to 28780

Update Clear Linux OS latest+base images to release 28780

library/clearlinux

@@ -1,4 +1,4 @@
 # maintainer: William Douglas <[email protected]> (@bryteise)
 
-latest: git://github.com/clearlinux/docker-brew-clearlinux@a6c084f67e32d3faf440fdd0c21793f3d83749a7
-base: git://github.com/clearlinux/docker-brew-clearlinux@a6c084f67e32d3faf440fdd0c21793f3d83749a7
+latest: git://github.com/clearlinux/docker-brew-clearlinux@21172c23a7c97de0f8239cac7b7343b233fed085
+base: git://github.com/clearlinux/docker-brew-clearlinux@21172c23a7c97de0f8239cac7b7343b233fed085