Update yum/dnf cache before package installation
Update yum/dnf cache before package installation

Let use most recent version of packages for building/testing.

Signed-off-by: Ľubomír Carik <1ec632581e3911f6fba2f46dc1ee449d3af5852e@gmail.com>

brandt/openconnect,brandt/openconnect,brandt/openconnect,brandt/openconnect