Merge branch 'extend-netkit-io_uring-zc-selftests'

Daniel Borkmann says:

====================
Extend netkit io_uring ZC selftests

Small follow-up to the HW net selftests, in particular to add a
selftest showing that also large rx_buf_len for io_uring ZC is
supported with netkit queue leasing.
====================

Link: https://patch.msgid.link/20260614102607.863838-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>