* move the DisableVersionNegotiationPackets flag to the Transport

* add an integration test for DisableVersionNegotiationPackets

* move GSO control message handling to the oobConn

* disable OOB test on Windows

* improve GSO tests

* update ooConn.WritePacket comment

Go 1.21.1 was released, which fixed the bug that made this workaround
necessary.

…on (#4070)

There is no good reason to manually set the validity period for Retry
tokens. Retry tokens are only valid on a single connection during the
handshake, so it makes sense to limit their validity to the configured
handshake timeout.

* randomize the serialization order of control frames

* add comment for packetPacker.appendPacketPayload

add ECN support

* also send session ticket when 0-RTT is disabled for go1.21

* allow session ticket without transport parameters

* do not include transport parameters for non-0RTT session ticket

* remove the test assertion because it is not supported for go1.20

* Update internal/handshake/session_ticket.go

Co-authored-by: Marten Seemann <[email protected]>

* add a 0-RTT argument to unmarshaling session tickets

* bump sessionTicketRevision to 4

* check if non-0-RTT session ticket has expected length

* change parameter order

* add test checks

---------

Co-authored-by: Marten Seemann <[email protected]>

They were introduced to avoid an import loop in the tests in the logging
package, but the same can be achieved by having a dedicated package for
the tests (logging_test).

* ackhandler: detect ECN mangling

Mangling means that a path is re-marking all ECN-marked packets as CE.

* ackhandler: only detect ECN mangling once all testing packets were sent

* add a Transport config option for the key used to encrypt tokens

* handshake: remove unused error return values

* ci: combine the go generate workflow with the linting workflow

* reorder

* http3: introduce an HTTP/3 error type

* http3: use a pointer receiver for the Error

… are lost (#4088)

* ackhandler: don't fail ECN validation less than 10 testing packets lost

* ackhandler: simplify checks for mangling and loss of all testing packets

Some of the 10 testing packets are might be lost, while others might be
CE-marked. We need to detect mangling if all testing packets are either
lost are CE-marked.

* chore: add my project

* fix order