Undeclared name "net" when using Postgres' MACADDR

[td0m]

When you use MACADDR Postgres data type it converts it to net.HardwareAddr, but it doesn't import net.

[kyleconroy]

Reproduced in the sqlc Playground here: https://play.sqlc.dev/p/1c9ab2e5ccf8d58df24b8b4c75ff74f0a207f807a6b986f6447e444b4035b030