configs/releng/airootfs/etc/systemd/network/: move RouteMetric= from [DHCPv6] to [IPv6AcceptRA]
systemd v249 will move RouteMetric=
from [DHCPv6]
to [IPv6AcceptRA]
. See https://github.com/systemd/systemd/commit/8ebafba9f987c21aa5787c8767f2e390b4ec0bc5 .
Once the systemd package with this change lands in core, we will need to update the networkd configuration in configs/releng/airootfs/etc/systemd/network/.
Things would be a lot easier if per-interface-type route metrics would get implemented, https://github.com/systemd/systemd/issues/17698 .