Dom0: set metadata_expiry=0 for qubes-dom0-cached repo
Dom0: set metadata_expiry=0 for qubes-dom0-cached repo

This way the list of dowloaded packages (via qvm-dom0-upgrade) will be immediately seen by yum.

woju/qubes-core-admin,QubesOS/qubes-core-admin,marmarek/qubes-core-admin,woju/qubes-core-admin,woju/qubes-core-admin,QubesOS/qubes-core-admin,woju/qubes-core-admin,marmarek/qubes-core-admin,QubesOS/qubes-core-admin,marmarek/qubes-core-admin