lib/connections: Update quic (#6591)

* lib/connections: Update quic

* Fix freebsd builds?

* Undo x/sys and gopsutil update

* Update quic_dial.go

* Update quic_listen.go

go.mod

@@ -17,13 +17,14 @@ require (
 	github.com/gobwas/glob v0.2.3
 	github.com/gogo/protobuf v1.3.1
 	github.com/golang/groupcache v0.0.0-20190702054246-869f871628b6
+	github.com/golang/protobuf v1.4.0 // indirect
 	github.com/greatroar/blobloom v0.2.0
 	github.com/jackpal/gateway v1.0.6
 	github.com/jackpal/go-nat-pmp v1.0.2
 	github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51
 	github.com/kr/pretty v0.2.0 // indirect
 	github.com/lib/pq v1.2.0
-	github.com/lucas-clemente/quic-go v0.14.4
+	github.com/lucas-clemente/quic-go v0.15.5
 	github.com/maruel/panicparse v1.3.0
 	github.com/mattn/go-isatty v0.0.11
 	github.com/minio/sha256-simd v0.1.1