Update Colos theme submodule
Update Colos theme submodule

Update to
ahaasler/hexo-theme-colos@ab1b0ccf0aff0fedd9db91dde8728fc435509731.

ahaasler/hexo-theme-colos-demo,ahaasler/hexo-theme-colos-multilingual-demo,ahaasler/hexo-theme-colos-multilingual-demo