CI tests disabled

The following CI tests have been failing for a while (weeks?). I've disabled them in CI and filed bugs. sys.net.if_bridge_test.span sys.netpfil.pf.forward.v6 sys.netpfil.pf.set_tos.v6 sys.netpfil.pf.killstate.v6 https://bugs.freebsd.org/260461 https://bugs.freebsd.org/260460 https://bugs.freebsd.

[Bug 260427] netmap causes packet drops

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=260427 Mark Linimon changed: What|Removed |Added Keywords||regression Assignee|b...@

[Bug 260260] igb(4) I35{0,4} parrent <--> vlan jumbo frame mtu mismatch

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=260260 --- Comment #4 from Marek Zarychta --- I was told to update the PR with some em vs igb details, so TL;DR: 1. em(4) works like before with the same MTU 9000 on parent em(4), lagg(4) and vlan(4) with the options: VLAN_MTU,VLAN_HWTAGGING,VLAN_