Create a directory for gpg sockets in /run/user/ (RhBug:1769831,1771012)
Create a directory for gpg sockets in /run/user/ (RhBug:1769831,1771012)

The solution of sending the "KILLAGENT" message to gpgagent to make it
clean up its sockets in gpg home dir is causing a race condition with
the gpgme_release() function.

Instead of trying to make the agent clean up its sockets (which doesn't
seem to be reliably possible), take advantage of its feature to create
the sockets under '/run/user/$UID' if this directory is present. The
sockets shouldn't be causing any trouble in this directory.

The commit creates the '/run/user/$UID' directory if it's not present on
the system. The sockets are then created there.

https://bugzilla.redhat.com/show_bug.cgi?id=1769831
https://bugzilla.redhat.com/show_bug.cgi?id=1771012

Tojaj/librepo,Tojaj/librepo,rpm-software-management/librepo,rpm-software-management/librepo,Tojaj/librepo,rpm-software-management/librepo